Butt joint welding device for different diameter steel pipes

Abstract

The utility model discloses a kind of butt joint of different diameter steel pipe joint welder, belong to steel pipe welding technical field, including base, rotating circular pipe for butt joint of different diameter steel pipe and be used for the welding machine of butt joint weld of different diameter steel pipe, the inside fixedly connected with second fixed plate of rotating circular pipe, the side of second fixed plate is equipped with second motor, the output fixedly connected with round gear of second motor, the side of round gear is engaged with rack slidingly connected with rotating disc, the downside fixedly connected with support plate of rack, the side of support plate away from rack is equipped with press switch, the device is rotated by second motor and drives round gear, rack is moved, rack moves and support plate moves, support plate supports inside steel pipe, and different diameter steel pipe is fixed at the same center.

Description

Technical Field

[0001] This utility model belongs to the field of steel pipe welding technology, and in particular to a welding device for butt joints of steel pipes of different diameters. Background Technology

[0002] Steel pipes are tubular products made of steel, and can be divided into seamless steel pipes and welded steel pipes. Seamless steel pipes are formed by heating steel billets and extruding them through a steel pipe die. Seamless steel pipes have a smooth surface and a uniform inner wall, making them suitable for applications requiring high pressure, high temperature, or complex shapes. Welded steel pipes are made by bending, rolling, and then welding steel plates, and are commonly used in the construction of structural frames, load-bearing columns, and beams. In the oil and gas industry, steel pipes are used to transport fluids such as oil, gas, and water. In machinery manufacturing, steel pipes are used to manufacture bearings, automotive exhaust systems, and hydraulic equipment.

[0003] Current welding devices for joints of steel pipes of different diameters lack a center alignment device during welding. If center alignment is not performed, the steel pipes may tilt after welding multiple steel pipes of different diameters, affecting the quality of the finished product.

[0004] Therefore, in view of this situation, there is an urgent need to design and produce a welding device for the joints of steel pipes of different diameters to meet the needs of practical use. Utility Model Content

[0005] The purpose of this invention is to provide a welding device for the joint of steel pipes of different diameters, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding device for joint seams of steel pipes of different diameters, comprising a base, a rotating circular tube for joint seams of steel pipes of different diameters, and a welding machine for welding joint seams of steel pipes of different diameters. A second fixing plate is fixedly connected inside the rotating circular tube. A second motor is installed on the side of the second fixing plate. A spur gear is fixedly connected to the output end of the second motor. A rack that is slidably connected to the rotating disk is meshed on the side of the spur gear. A support plate is fixedly connected to the lower side of the rack. A push-button switch is installed on the side of the support plate away from the rack.

[0007] Preferably, a first fixing plate is fixedly connected to the upper side of the base and rotatably connected to the rotating round tube, and a first motor is installed on the side of the first fixing plate.

[0008] Preferably, a first telescopic rod is installed on the side of the base, and a first movable block is fixedly connected to the extended end of the first telescopic rod.

[0009] Preferably, a second telescopic rod is fixedly connected to the upper side of the first movable block, a first support frame is fixedly connected to the extended end of the second telescopic rod, and a third telescopic rod is installed on the side of the first movable block.

[0010] Preferably, the extended end of the third telescopic rod is fixedly connected to a second movable block, and the upper side of the second movable block is fixedly connected to a fourth telescopic rod.

[0011] Preferably, the extended end of the fourth telescopic rod is fixedly connected to a second support frame, a fifth telescopic rod is installed on the side of the base, and a third moving block is installed on the extended end of the fifth telescopic rod.

[0012] Preferably, a sixth telescopic rod is installed on the upper side of the third moving block, and the extended end of the sixth telescopic rod is connected to the welding machine.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] The welding device for the joint of steel pipes of different diameters uses a second motor to drive a spherical gear to rotate, which in turn drives a rack to move. The movement of the rack drives a support plate to move, and the support plate supports the inside of the steel pipes, fixing the steel pipes of different diameters at the same center. During movement, the second support frame limits the movement of the two steel pipes of different diameters to prevent the smaller steel pipe from being fitted inside the larger steel pipe.

[0015] The steel pipe is moved by the second telescopic rod, the first moving block and the first support frame, and is limited by the second support frame, so that there is a small gap between the two steel pipes of different diameters, which makes it easy to weld them by a welding machine. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the rack structure of this utility model;

[0019] Fig. 3 This is a schematic diagram of the structure of the first support frame of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1. Base; 2. First fixing plate; 3. First motor; 4. Rotating round tube; 5. Support plate; 6. Push-button switch; 7. Second fixing plate; 8. Second motor; 9. Circular gear; 10. Rack; 11. First telescopic rod; 12. First moving block; 13. Second telescopic rod; 14. First support frame; 15. Third telescopic rod; 16. Second moving block; 17. Fourth telescopic rod; 18. Second support frame; 19. Fifth telescopic rod; 20. Sixth telescopic rod; 21. Welding machine; 22. Third moving block. Detailed Implementation

[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0023] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0024] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0025] To address the issue of lacking a center alignment device during the welding of steel pipes of different diameters, which can lead to pipe tilting after welding if center alignment is not performed, thus affecting the quality of the finished product, the following measures are taken. Figs. 1 to 3The device for welding joints of steel pipes of different diameters includes a base 1, a rotating circular tube 4 for welding joints of steel pipes of different diameters, and a welding machine 21 for welding joints of steel pipes of different diameters. A second fixed plate 7 is fixedly connected inside the rotating circular tube 4. A second motor 8 is mounted on the side of the second fixed plate 7. A circular gear 9 is fixedly connected to the output end of the second motor 8. A rack 10, which is slidably connected to a rotating disc, meshes with the side of the circular gear 9. A slider is provided on the side of the rack 10. A slider is also provided on the support plate 5 to facilitate sliding connection with the rotating circular tube 4 and to limit the movement of the rack 10, ensuring that the rack 10 can only move vertically. The circular gear 9 has... Parallel racks 10 are provided. The rotation of the racks 10 drives the two racks 10 to move synchronously towards each other. After the support plate 5 and the push-button switch 6 contact the inner wall of the steel pipe, the push-button switch 6 sends an electrical signal to stop the second motor 8 from rotating and support the steel pipe. The inner wall of the rotating round tube 4 is provided with a second fixing plate 7, which facilitates the fixed connection with the second motor 8 and is rotatably connected to the spur gear 9. The support plate 5 is fixedly connected to the lower side of the racks 10. The push-button switch 6 is installed on the side of the support plate 5 away from the racks 10. The upper side of the base 1 is fixedly connected to a first fixing plate 2 that is rotatably connected to the rotating round tube 4. The first motor 3 is installed on the side of the first fixing plate 2.

[0026] A first telescopic rod 11 is installed on the side of the base 1. A first moving block 12 is fixedly connected to the extended end of the first telescopic rod 11. A second telescopic rod 13 is fixedly connected to the upper side of the first moving block 12. A first support frame 14 is fixedly connected to the extended end of the second telescopic rod 13. The second support frame 18 is relatively thin. Multiple ball bearings that are easy to move are rotatably connected to the side of the first support frame 14. A third telescopic rod 15 is installed on the side of the first moving block 12. A second moving block 16 is fixedly connected to the extended end of the third telescopic rod 15. A fourth telescopic rod 17 is fixedly connected to the upper side of the second moving block 16. A second support frame 18 is fixedly connected to the extended end of the fourth telescopic rod 17. A fifth telescopic rod 19 is installed on the side of the base 1. A third moving block 22 is installed to the extended end of the fifth telescopic rod 19. A sixth telescopic rod 20 is installed to the upper side of the third moving block 22. The extended end of the sixth telescopic rod 20 is connected to the welding machine 21.

[0027] All structures and instruments are treated with heat-resistant and waterproof materials.

[0028] The first motor 3, the push-button switch 6, the second motor 8, the first telescopic rod 11, the second telescopic rod 13, the third telescopic rod 15, the fourth telescopic rod 17, the fifth telescopic rod 19, and the sixth telescopic rod 20 are all conventional devices. Their working principles, dimensions, and models are irrelevant to the function of this application, so they will not be described in detail. They are all controlled by remote control switches. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0029] Working principle

[0030] In use, the welding device for the joint of steel pipes of different diameters involves fitting two steel pipes of different diameters onto a rotating disc 4 and limiting their position using a second support frame 18. The first telescopic rod 11 is activated, moving the first moving block 12, the second telescopic rod 13, and the first support frame 14, thus moving the two steel pipes. The second motor 8 is then activated, rotating the spur gear 9, which in turn moves the rack 10, which in turn moves the support plate 5, fixing the steel pipes in place. The fourth telescopic rod 17 is then activated, moving the second support frame 18 away from the steel pipes. The welding machine 21 is then activated to weld the steel pipes. Finally, the first motor 3 is activated, rotating the rotating disc 4 and the steel pipes to perform a full weld.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding device for butt joints of steel pipes of different diameters, comprising a base (1), a rotating circular tube (4) for butt joints of steel pipes of different diameters, and a welding machine (21) for butt joints of steel pipes of different diameters, characterized in that: The rotating tube (4) is fixedly connected to a second fixed plate (7). A second motor (8) is installed on the side of the second fixed plate (7). A spur gear (9) is fixedly connected to the output end of the second motor (8). A rack (10) that is slidably connected to the rotating disc is meshed on the side of the spur gear (9). A support plate (5) is fixedly connected to the lower side of the rack (10). A push-button switch (6) is installed on the side of the support plate (5) away from the rack (10).

2. The welding device for butt joints of steel pipes of different diameters according to claim 1, characterized in that: The upper side of the base (1) is fixedly connected to a first fixing plate (2) which is rotatably connected to the rotating round tube (4), and a first motor (3) is installed on the side of the first fixing plate (2).

3. The welding device for butt joints of steel pipes of different diameters according to claim 2, characterized in that: A first telescopic rod (11) is installed on the side of the base (1), and a first moving block (12) is fixedly connected to the extended end of the first telescopic rod (11).

4. The welding device for butt joints of steel pipes of different diameters according to claim 3, characterized in that: The upper side of the first movable block (12) is fixedly connected to a second telescopic rod (13), the extended end of the second telescopic rod (13) is fixedly connected to a first support frame (14), and a third telescopic rod (15) is installed on the side of the first movable block (12).

5. The welding device for butt joints of steel pipes of different diameters according to claim 4, characterized in that: The extended end of the third telescopic rod (15) is fixedly connected to the second moving block (16), and the upper side of the second moving block (16) is fixedly connected to the fourth telescopic rod (17).

6. The welding device for butt joints of steel pipes of different diameters according to claim 5, characterized in that: The extended end of the fourth telescopic rod (17) is fixedly connected to the second support frame (18), and the fifth telescopic rod (19) is installed on the side of the base (1). The extended end of the fifth telescopic rod (19) is equipped with the third moving block (22).

7. The welding device for butt joints of steel pipes of different diameters according to claim 6, characterized in that: A sixth telescopic rod (20) is installed on the upper side of the third moving block (22), and the extended end of the sixth telescopic rod (20) is connected to the welding machine (21).

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