Circular tube welding tool

Abstract

The utility model provides a round pipe welding tool which comprises a shell, the shell is a cuboid and is arranged in a vertically-through mode, one side of the upper end of the shell is rotationally connected with a first supporting wheel, the other side of the shell is slidably connected with a sliding seat, the upper end of the sliding seat is rotationally connected with a second supporting wheel, and the interior of the sliding seat is fixedly connected with a hydraulic cylinder; and one end of the hydraulic cylinder extends to be provided with a telescopic rod, the other end of the telescopic rod is fixedly connected with the inner wall of the shell, a sliding groove is formed in the side wall of the shell, a sliding block is fixedly connected to the side wall of the sliding base, and the sliding block is arranged in the sliding groove in a sliding fit mode. The circular ring butt welding device can be suitable for butt welding operation of circular rings with different pipe diameters by controlling the distance between the first supporting wheel and the second supporting wheel.

Description

Technical Field

[0001] The present invention relates to the technical field of welding work, in particular to a round pipe welding tool. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure.

[0003] During the butt welding process of round pipes, the round pipes need to be supported and the rotation of the round pipes must be ensured during the butt welding process. Therefore, existing butt welding tools are mostly customized according to the round pipes to be welded, and are not very applicable to round pipes of different diameters. Summary of the Invention

[0004] To address the aforementioned issues, the present invention discloses a round tube welding tool, comprising a rectangular parallelepiped housing extending vertically through the housing. A first support wheel is rotatably connected to one side of the upper end of the housing, and a slide is slidably connected to the other side of the housing. A second support wheel is rotatably connected to the upper end of the slide. The first and second support wheels are used to support the round tube being welded.

[0005] A hydraulic cylinder is fixedly connected to the interior of the slide. A telescopic rod extends from one end of the hydraulic cylinder. The other end of the telescopic rod is fixedly connected to the inner wall of the housing. A slide block is fixedly connected to the side wall of the housing and slides in the slide block. Driving the hydraulic cylinder and moving the telescopic rod causes the slide to slide on the housing, thereby changing the spacing between the first and second support wheels. By adjusting the spacing between the two, circular pipes of different diameters can be supported during welding.

[0006] Preferably, a hydraulic motor is fixedly connected to the interior of the housing, the output end of the hydraulic motor is fixedly connected to a first gear, and a second gear is fixedly connected to the rotating shaft at the end of the first support wheel, with the first and second gears meshing with each other. During welding, the hydraulic motor is activated, and the transmission of the first and second gears drives the first support wheel to rotate, thereby driving the round pipe placed above to rotate.

[0007] Preferably, a plurality of supporting legs are fixedly connected to the lower end of the shell, and the supporting legs are used to support the shell.

[0008] Preferably, the tooling is used in combination with several tools, and they share the first oil supply pipe, the second oil supply pipe and the oil return pipe. The tooling is used to support the round pipe, so at least four tools are used to weld two round pipes, and each tooling shares the first oil supply pipe, the second oil supply pipe and the oil return pipe.

[0009] Preferably, the two oil ports of the hydraulic cylinder are fixedly connected to a reversing valve, and the two oil ports on the reversing valve are respectively connected to the first oil supply pipe and the oil return pipe. The reversing valve is a three-position four-way valve used to control the extension or retraction of the telescopic rod on the hydraulic cylinder.

[0010] Preferably, the oil inlet of the hydraulic motor is connected to the second oil supply pipe, the oil outlet of the hydraulic motor is fixedly connected to a throttle valve, and the other end of the throttle valve is connected to the oil return pipe. The throttle valve is used to control the speed of the hydraulic motor.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. A slide is provided. By changing the position of the slide, the distance between the first support wheel and the second support wheel can be controlled, so that it can be applied to the butt welding operation of round pipes with different diameters.

[0013] 2. During the butt welding of round pipes, multiple toolings are required. A first oil supply pipe, a second oil supply pipe and an oil return pipe are provided to conveniently provide hydraulic pressure to the toolings used, which is beneficial to the use of the toolings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 It is an explosion diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the control pipeline of the present invention;

[0017] Figure 4 This is an illustration of the use scenario of the present invention.

[0018] List of reference numerals:

[0019] 1. Housing; 2. First support wheel; 3. Support leg; 4. Second support wheel; 5. Slide; 6. Slide; 7. Hydraulic cylinder; 8. Slider; 9. Telescopic rod; 10. First gear; 11. Hydraulic motor; 12. Second gear; 13. First oil supply pipe; 14. Reversing valve; 15. Oil return pipe; 16. Second oil supply pipe; 17. Throttle valve. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0021] like Figures 1 to 4 As shown, a round tube welding tool includes a shell 1. The shell 1 is a rectangular parallelepiped and is set to be penetrated from top to bottom. The setting of penetrating from top to bottom can prevent welding slag from falling into the shell 1 and causing problems such as jamming. One side of the upper end of the shell 1 is rotatably connected to a first support wheel 2, and the other side of the shell 1 is slidably connected to a slide 5, that is, the slide 5 can slide on the shell 1, and the upper end of the slide 5 is rotatably connected to a second support wheel 4. The first support wheel 2 and the second support wheel 4 cooperate with each other to support the round tube to be welded. At the same time, the slide 5 is slidably set, that is, the distance between the first support wheel 2 and the second support wheel 4 is changed, so as to use round tubes of different diameters for welding.

[0022] The interior of the slide 5 is fixedly connected to a hydraulic cylinder 7, and the axial direction of the hydraulic cylinder 7 is the same as the length direction of the shell 1. A telescopic rod 9 is extended from one end of the hydraulic cylinder 7, that is, the telescopic rod 9 is fixedly connected to the output end of the hydraulic cylinder 7, and the other end of the telescopic rod 9 is fixedly connected to the inner wall of the shell 1, that is, the cylinder 7 is also equipped to achieve the extension or retraction of the telescopic rod 9, that is, the distance between the first support wheel 2 and the second support wheel 4 is reduced or increased. A slide groove 6 is provided on the side wall of the shell 1, and a slider 8 is fixedly connected to the side wall of the slide 5, which slides in the slide groove 6. The sliding of the slide 5 on the shell 1 is achieved by the cooperation between the slider 8 and the slide groove 6.

[0023] A hydraulic motor 11 is fixedly connected to the interior of the housing 1. The output end of the hydraulic motor 11 is fixedly connected to a first gear 10. A second gear 12 is fixedly connected to the rotating shaft at the end of the first support wheel 2, and the first gear 10 and the second gear 12 are meshed. When the hydraulic motor 11 is started, the first support wheel 2 is driven by the first gear 10 and the second gear 12, thereby rotating the round pipe placed above, realizing the rotation required during the round pipe butt welding process.

[0024] The lower end of the housing 1 is fixedly connected with a plurality of support legs 3. The support legs 3 are used to support and fix the housing 1.

[0025] The tooling is used in combination with several tools, that is, each round tube is supported by at least two tools, and they share the first oil supply pipe 13, the second oil supply pipe 16 and the oil return pipe 15. By sharing the above pipelines, the control difficulty of the tooling control can be reduced.

[0026] The two oil ports of the hydraulic cylinder 7 are fixedly connected to a reversing valve 14, which is a three-position four-way valve. The two oil ports on the reversing valve 14 are respectively connected to the first oil supply pipe 13 and the oil return pipe 15. Controlling the reversing valve 14 changes the state of the telescopic rod 9 to extend or retract.

[0027] The oil inlet of the hydraulic motor 11 is connected to the second oil supply pipe 16, and the oil outlet of the hydraulic motor 11 is fixedly connected to a throttle valve 17. The other end of the throttle valve 17 is connected to the return oil pipe 15. During the operation of the hydraulic motor 11, the throttle valve 17 is adjusted to control the flow of the hydraulic oil, thereby controlling the speed of the hydraulic motor 11 and ensuring the stability of the rotation of the circular tube.

[0028] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiment, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A round tube welding tool, characterized in that: The housing (1) comprises a rectangular parallelepiped and is provided through-through from top to bottom; one side of the upper end of the housing (1) is rotatably connected to a first support wheel (2); the other side of the housing (1) is slidably connected to a slide seat (5); the upper end of the slide seat (5) is rotatably connected to a second support wheel (4); The interior of the slide (5) is fixedly connected to a hydraulic cylinder (7), one end of the hydraulic cylinder (7) is extended with a telescopic rod (9), the other end of the telescopic rod (9) is fixedly connected to the inner wall of the housing (1), the side wall of the housing (1) is provided with a slide groove (6), the side wall of the slide (5) is fixedly connected to a slider (8), and the slider (8) is slidably fitted in the slide groove (6).

2. The round tube welding tool according to claim 1, characterized in that: A hydraulic motor (11) is fixedly connected to the interior of the housing (1), a first gear (10) is fixedly connected to the output end of the hydraulic motor (11), a second gear (12) is fixedly connected to the rotating shaft at the end of the first support wheel (2), and the first gear (10) and the second gear (12) are meshed.

3. The round tube welding tool according to claim 1, characterized in that: A plurality of supporting legs (3) are fixedly connected to the lower end of the shell (1).

4. The round tube welding tool according to claim 2, characterized in that: The tooling is used in combination with a plurality of tools, and shares a first oil supply pipe (13), a second oil supply pipe (16), and an oil return pipe (15).

5. The round tube welding tool according to claim 4, characterized in that: The two oil ports of the hydraulic cylinder (7) are fixedly connected to a reversing valve (14), and the two oil ports on the reversing valve (14) are respectively connected to the first oil supply pipe (13) and the oil return pipe (15).

6. The round tube welding tool according to claim 4, characterized in that: The oil inlet of the hydraulic motor (11) is connected to the second oil supply pipe (16), and the oil outlet of the hydraulic motor (11) is fixedly connected to a throttle valve (17), and the other end of the throttle valve (17) is connected to the oil return pipe (15).

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