Gas pipeline welding machine

Abstract

The utility model discloses a gas pipeline welding machine, which relates to the technical field of gas pipeline welding, solves the problems that the joint of a pipeline cannot be trimmed, the pipeline needs to be placed on trimming equipment again for positioning, the pipeline processing time is increased, and the welding efficiency is reduced, and comprises a welding machine base, a mounting frame is fixed to the left side of the welding machine base, a rodless air cylinder is fixed to the upper surface of the mounting frame through bolts, a hot melting disc is fixed to the lower end of the rodless air cylinder through bolts, and a trimming part fixed to the rodless air cylinder is arranged on the left side of the hot melting disc. The driving motor is started to drive the driving gear to be meshed with the driven gear ring to rotate, under the cooperation of the guide ring and the guide groove, normal rotation of the driven gear ring can be guaranteed, the telescopic motor drives the trimming motor to move, so that the trimming knife makes contact with the welding position of the pipeline, and the trimming motor drives the trimming knife to rotate. And meanwhile, a circle is turned around the welding position of the pipeline, and the welding position of the pipeline is trimmed.

Description

Technical Field

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

[0002] With the development of my country's oil and gas industry, liquefied natural gas has been widely used. As the main mode of transporting domestic gas, the construction of urban gas pipelines has developed rapidly, and the welding technology of gas pipelines has also been gradually improved. Gas pipelines are widely used in life, mainly for the transportation of gas. When processing gas pipelines, welding machines are needed to weld the gas pipelines.

[0003] The gas pipeline welding machine disclosed in the Chinese utility model (Announcement No.: CN219924982U) includes a workbench, a welding machine is fixedly installed on the top of the workbench, and symmetrically arranged first electric push rods are fixedly installed on the top of the workbench. The number of the first electric push rods is two, and a mounting block is fixedly installed on the top of the two first electric push rods. A second electric push rod is fixedly installed on the side of the two mounting blocks away from each other, and the second electric push rod runs through the mounting block. A placement rack is fixedly installed on the side of the two second electric push rods close to each other. It places two gas pipelines on two brackets respectively and pushes a rotating rod to rotate. The rotating rod can press the clamp to fit the pipeline. The pipeline is first fixed, and then the first electric push rod and the second electric push rod are started to adjust the position of the pipeline, so as to facilitate welding by the welding machine.

[0004] In the above technical solution, two gas pipelines are placed on two brackets respectively and the rotating rod is pushed to rotate. The rotating rod can press the clamp to fit the pipeline, first fix the pipeline, and then start the first electric push rod and the second electric push rod to adjust the position of the pipeline, so as to facilitate welding by the welding machine. However, after the welding is completed, the connection of the pipeline cannot be trimmed, and the pipeline needs to be placed back on the trimming equipment for positioning, which increases the pipeline processing time and reduces the welding efficiency. Therefore, a gas pipeline welding machine is now proposed. Utility Model Content

[0005] In order to improve the problem that the connection of the pipeline cannot be trimmed, the pipeline needs to be re-placed on the trimming equipment for positioning, which increases the pipeline processing time and reduces the welding efficiency. The utility model provides a gas pipeline welding machine.

[0006] The utility model provides a gas pipeline welding machine, which adopts the following technical solutions:

[0007] A gas pipeline welding machine comprises a welding machine base, a mounting frame is fixed on the left side of the welding machine base, a rodless cylinder is fixed to the upper surface of the mounting frame by bolts, a hot melt plate is fixed to the lower end of the rodless cylinder by bolts, a trimming piece fixed to the rodless cylinder is provided on the left side of the hot melt plate, a driving motor is fixed to the outer wall of the trimming piece by screws, a power output shaft of the driving motor passes through the trimming piece and is connected to a driving gear, a driven gear ring is meshed on the outer wall of the driving gear, a telescopic motor is fixed to the inner surface of the driven gear ring, a trimming motor is fixed to the telescopic end of the telescopic motor, and a trimming knife is connected to the power output shaft of the trimming motor.

[0008] By adopting the above technical solution, the driving motor is started to drive the active gear to mesh with the driven gear ring to rotate. With the cooperation of the guide ring and the guide groove, the normal rotation of the driven gear ring can be guaranteed. The telescopic motor drives the trimming motor to move, so that the trimming knife contacts the welding part of the pipe. The trimming motor drives the trimming knife to rotate, and at the same time circles around the welding part of the pipe to trim the welding part of the pipe.

[0009] Optionally, a guide ring is fixed to the side wall of the driven gear ring, and the outer surface of the guide ring is slidably connected to a guide groove provided on the inner wall of the trimming member.

[0010] By adopting the above technical solution, with the cooperation of the guide ring and the guide groove, the normal rotation of the driven gear ring can be guaranteed, thus playing a guiding role.

[0011] Optionally, two groups of mounting seats are symmetrically arranged on the upper end of the welding machine base, and lower clamping members are fixed to the upper surfaces of the two groups of mounting seats.

[0012] By adopting the above technical solution, the pipe to be welded can be placed on the lower clamping piece through the lower clamping piece arranged on the mounting seat, which is convenient for use.

[0013] Optionally, the upper end of the lower clamping member is connected to the upper clamping member, and fixing bolts threadedly connected to the lower clamping member are installed on both sides of the upper clamping member.

[0014] By adopting the above technical solution, the upper clamping member and the lower clamping member are connected and fixed by fixing bolts, thereby fixing the two pipes.

[0015] Optionally, a dual-axis motor is fixed inside the welding machine base by bolts.

[0016] By adopting the above technical solution, the detected data is sent to the processor through the ultrasonic flaw detection head for processing and then sent to the display screen, which is convenient for users to observe whether there are defects in the pipeline welding.

[0017] Optionally, the power output shaft of the dual-axis motor is connected to a screw rod threadedly connected to the mounting seat, and the end of the screw rod is rotatably connected to the inner wall of the welding machine base through a bearing.

[0018] By adopting the above technical solution, the dual-axis motor drives the screw to rotate, drives the threaded mounting base to move horizontally, and drives the two pipes to approach each other. After the end of the pipe contacts the outer wall of the hot melt disk, the dual-axis motor stops running, and the hot melt disk starts to heat and melt the end of the pipe, which is convenient for subsequent hot melt welding.

[0019] Optionally, a guide rod passes through the interior of the mounting seat, and the guide rod is fixedly connected to the welding machine base.

[0020] By adopting the above technical solution, the guide rod fixed in the welding machine base can play a guiding role to avoid deviation when the mounting seat moves.

[0021] In summary, the utility model has the following beneficial effects:

[0022] The utility model starts the driving motor to drive the driving gear to mesh with the driven gear ring to rotate. Under the cooperation of the guide ring and the guide groove, the driven gear ring can be guaranteed to rotate normally. The telescopic motor drives the trimming motor to move, so that the trimming knife contacts the welding part of the pipeline. The trimming motor drives the trimming knife to rotate and circles around the welding part of the pipeline to trim the welding part of the pipeline.

[0023] The utility model connects the upper clamping part and the lower clamping part, fixes them by fixing bolts, so as to fix the two pipes; sends the detected data to the processor for processing through the ultrasonic flaw detection head and then sends it to the display screen, so that the user can observe whether there are defects in the pipe welding; the double-axis motor drives the screw rod to rotate, drives the threaded mounting seat to move horizontally, drives the two pipes to approach each other, and after the end of the pipe contacts the outer wall of the hot melt plate, the double-axis motor stops running, and the hot melt plate starts to heat and melt the end of the pipe, so as to facilitate the subsequent hot melt welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the base of the welding machine of the utility model;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the mounting frame of the utility model;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the trimming piece of the utility model.

[0028] Description of reference numerals:

[0029] 1. Welding machine base; 2. Mounting frame; 3. Rodless cylinder; 4. Hot melt plate; 5. Trimming piece; 6. Driving motor; 7. Driving gear; 8. Driven gear ring; 9. Guide ring; 10. Guide groove; 11. Telescopic motor; 12. Mounting seat; 13. Lower clamping piece; 14. Upper clamping piece; 15. Fixing bolt; 16. Trimming motor; 17. Dual-axis motor; 18. Screw; 19. Guide rod; 20. Trimming knife. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0031] Please refer to Figure 1 , Figure 3 and Figure 4 The gas pipeline welding machine comprises a welding machine base 1, a mounting frame 2 is fixed on the left side of the welding machine base 1, a rodless cylinder 3 is fixed to the upper surface of the mounting frame 2 by bolts, a hot melt plate 4 is fixed to the lower end of the rodless cylinder 3 by bolts, a trimming piece 5 fixed to the rodless cylinder 3 is provided on the left side of the hot melt plate 4, a driving motor 6 is fixed to the outer wall of the trimming piece 5 by screws, a power output shaft of the driving motor 6 passes through the trimming piece 5 and is connected to a driving gear 7, a driven gear ring 8 is meshed with the outer wall of the driving gear 7, and a telescopic Motor 11, the telescopic end of the telescopic motor 11 is fixed with a trimming motor 16, the power output shaft of the trimming motor 16 is connected with a trimming knife 20, the driving motor 6 is started to drive the active gear 7 to engage the driven gear ring 8 to rotate, with the cooperation of the guide ring 9 and the guide groove 10, the normal rotation of the driven gear ring 8 can be guaranteed, the telescopic motor 11 drives the trimming motor 16 to move, so that the trimming knife 20 contacts the welding part of the pipe, the trimming motor 16 drives the trimming knife 20 to rotate, and at the same time circles around the welding part of the pipe to trim the welding part of the pipe.

[0032] Reference Figure 2 , Figure 3 and Figure 4A guide ring 9 is fixed to the side wall of the driven gear ring 8, and a guide groove 10 is slidably connected to the outer surface of the guide ring 9, which is provided on the inner wall of the trimming member 5. The cooperation between the guide ring 9 and the guide groove 10 can ensure the normal rotation of the driven gear ring 8, thereby playing a guiding role; two groups of mounting seats 12 are symmetrically arranged on the upper end of the welding machine base 1, and lower clamping members 13 are fixed to the upper surfaces of the two groups of mounting seats 12. Through the lower clamping members 13 provided on the mounting seats 12, the pipes to be welded can be placed on the lower clamping members 13 for easy use; an upper clamping member 14 is connected to the upper end of the lower clamping member 13, and fixing bolts 15 threadedly connected to the lower clamping member 13 are installed on both sides of the upper clamping member 14, and the upper clamping member 14 and the lower clamping member 13 are connected, and fixed by fixing bolts 15, thereby fixing the two pipes.

[0033] Reference Figure 1 , Figure 2 and Figure 3 A double-axis motor 17 is fixed to the inside of the welding machine base 1 by bolts, and the power output shaft of the double-axis motor 17 is connected to a screw rod 18 threadedly connected to the mounting seat 12. The end of the screw rod 18 is rotatably connected to the inner wall of the welding machine base 1 through a bearing. The double-axis motor 17 drives the screw rod 18 to rotate, drives the threaded mounting seat 12 to move horizontally, and drives the two pipes to approach each other. After the end of the pipe contacts the outer wall of the hot melt disk 4, the double-axis motor 17 stops running, and the hot melt disk 4 starts to heat and melt the end of the pipe, which is convenient for subsequent hot melt welding; a guide rod 19 runs through the inside of the mounting seat 12, and the guide rod 19 is fixedly connected to the welding machine base 1. The guide rod 19 fixed in the welding machine base 1 can play a guiding role to prevent the mounting seat 12 from deflecting when it moves.

[0034] The implementation principle of the utility model is as follows: before using the gas pipeline welding machine, the welding machine base 1 is placed in a suitable position first, and the pipes to be welded are placed on the two groups of lower clamping members 13 respectively through the two groups of lower clamping members 13, and then the upper clamping member 14 is connected to the lower clamping member 13, and fixed by fixing bolts 15, so as to fix the two pipes, and the double-axis motor 17 arranged in the welding machine base 1 drives the screw rod 18 to rotate, and with the cooperation of the guide rod 19, the screw rod 18 rotates to drive the threaded mounting seat 12 to move horizontally, so as to drive the two pipes to approach each other, and the hot melt disk 4 is arranged between the two pipes. When the end of the pipe contacts the outer wall of the hot melt disk 4, the double-axis motor 17 stops running, and the hot melt disk 4 starts to heat and melt the end of the pipe. After the hot melting is completed, the double-axis motor 17 drives the two pipes to move. The pipes are moved away from each other, and at the same time, the rodless cylinder 3 on the mounting frame 2 is started, driving the hot melt plate 4 and the trimming piece 5 to move horizontally, so that the trimming piece 5 moves between the two pipes, and then the dual-axis motor 17 drives the two pipes closer to each other again. Since the ends of the pipes are heated and melted, the two pipes are welded after contact. When the two pipes are welded and cooled, since the trimming piece 5 is located at the welding point of the two pipes, the driving motor 6 is started to drive the active gear 7 to engage the driven gear ring 8 to rotate. With the cooperation of the guide ring 9 and the guide groove 10, the normal rotation of the driven gear ring 8 can be guaranteed. At the same time, the telescopic motor 11 is set to drive the trimming motor 16 to move, so that the trimming knife 20 contacts the welding point of the pipe. The trimming motor 16 drives the trimming knife 20 to rotate, and at the same time circles around the welding point of the pipe, performs trimming operations on the welding point of the pipe, and improves practicality.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A gas pipeline welding machine, comprising a welding machine base (1), characterized in that: A mounting frame (2) is fixed on the left side of the welding machine base (1), a rodless cylinder (3) is fixed to the upper surface of the mounting frame (2) by bolts, a hot melt plate (4) is fixed to the lower end of the rodless cylinder (3) by bolts, a trimming piece (5) fixed to the rodless cylinder (3) is provided on the left side of the hot melt plate (4), a driving motor (6) is fixed to the outer wall of the trimming piece (5) by screws, a power output shaft of the driving motor (6) passes through the trimming piece (5) and is connected to a driving gear (7), a driven gear ring (8) is meshed on the outer wall of the driving gear (7), a telescopic motor (11) is fixed to the inner surface of the driven gear ring (8), a trimming motor (16) is fixed to the telescopic end of the telescopic motor (11), and a trimming knife (20) is connected to the power output shaft of the trimming motor (16).

2. The gas pipeline welding machine according to claim 1, characterized in that: A guide ring (9) is fixed to the side wall of the driven gear ring (8), and the outer surface of the guide ring (9) is slidably connected to a guide groove (10) provided on the inner wall of the trimming member (5).

3. The gas pipeline welding machine according to claim 1, characterized in that: Two groups of mounting seats (12) are symmetrically arranged on the upper end of the welding machine base (1), and lower clamping members (13) are fixed to the upper surfaces of the two groups of mounting seats (12).

4. The gas pipeline welding machine according to claim 3, characterized in that: The upper end of the lower clamping piece (13) is connected to the upper clamping piece (14), and fixing bolts (15) threadedly connected to the lower clamping piece (13) are installed on both sides of the upper clamping piece (14).

5. The gas pipeline welding machine according to claim 1, characterized in that: A dual-shaft motor (17) is fixed inside the welding machine base (1) by means of bolts.

6. The gas pipeline welding machine according to claim 5, characterized in that: The power output shaft of the dual-axis motor (17) is connected to a screw rod (18) threadedly connected to the mounting seat (12), and the end of the screw rod (18) is rotatably connected to the inner wall of the welding machine base (1) through a bearing.

7. The gas pipeline welding machine according to claim 3, characterized in that: A guide rod (19) penetrates the interior of the mounting seat (12), and the guide rod (19) is fixedly connected to the welding machine base (1).

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