Straightening device facilitating feeding and used for welded pipe machining

Abstract

The utility model relates to the technical field of welded pipe machining, in particular to a straightening device convenient to feed for welded pipe machining, and solves the problems that in the prior art, a welded pipe is directly extruded into a whole during welding and straightening, the welded pipe needs to be manually moved and fed, certain potential safety hazards exist, and the production efficiency is high. And the machining efficiency of the welded pipe is greatly reduced. A welding pipe machining straightening device facilitating feeding comprises a frame body, a bearing frame is fixedly connected to the inner side of the frame body, hydraulic oil cylinders are fixedly connected to the two sides of the outer wall of the bearing frame through bolts, clamping plates are slidably connected to the two sides of the inner side of the bearing frame, and arc-shaped grooves are formed in the opposite sides of the two clamping plates; and a bearing rod is arranged between the two arc-shaped grooves. According to the utility model, the production efficiency of welded pipe processing is greatly improved, the labor intensity is reduced, and meanwhile, the safety of operators is also guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of welded pipe processing technology, and in particular to a straightening device for easy feeding of welded pipes. Background Technology

[0002] Welded pipe processing is the process of joining two or more pipes together using welding. Overall, welded pipe processing includes multiple steps such as material preparation, surface cleaning, pipe butt welding, welding preparation, welding process, quality inspection, and post-processing. This process has advantages such as high production efficiency, a wide variety of specifications, and low equipment investment, but the strength of welded pipes is generally lower than that of seamless steel pipes. With continuous technological advancements, welded pipe processing has been widely applied in water supply projects, petrochemical industries, chemical industries, power industries, agricultural irrigation, and urban construction, becoming an indispensable part of modern industrial production.

[0003] Straightening is a crucial step in welded pipe processing to ensure the dimensional accuracy and surface quality of the finished product. The straightening process typically includes two methods: hot straightening and cold straightening, with temperature control being paramount. Excessive straightening temperature can lead to uneven cooling and deformation of the welded pipe, while insufficient temperature increases the difficulty of straightening. To achieve the desired straightening effect, one or more straightening operations may be necessary, depending on the specific pipe material. The straightening process significantly improves the straightness of the welded pipe, enabling it to meet the stringent requirements of subsequent processing and use.

[0004] In the straightening process of welded pipe processing, it is necessary to ensure the efficiency of pipe straightening and increase the feeding rate of welded pipe during the straightening process. However, considering that the traditional welding straightening process directly compresses the welded pipe as a whole, which requires manual movement and feeding of the welded pipe, it not only poses certain safety hazards but also greatly reduces the efficiency of welded pipe processing and is extremely inconvenient. Therefore, there is an urgent need for a straightening device for welded pipe processing that facilitates feeding, in order to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a straightening device for welded pipe processing that facilitates material feeding. This solves the problem that in the existing technology, welding straightening involves directly compressing the welded pipe as a whole, which requires manual movement and feeding of the welded pipe. This not only poses certain safety hazards but also greatly reduces the efficiency of welded pipe processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A straightening device for easy loading of welded pipes includes a frame, a bearing frame fixedly connected to the inner side of the frame, and hydraulic cylinders fixedly connected to both sides of the outer wall of the bearing frame by bolts. Clamping plates are slidably connected to both sides of the inner side of the bearing frame. An arc-shaped groove is formed on one side of each clamping plate, and a bearing rod is provided between the two arc-shaped grooves. A first cylinder is fixedly connected to one side of the outer wall of the frame by bolts, and the output shaft of the first cylinder passes through the side wall of the frame and is fixedly connected to one end of the bearing rod. A movable frame is provided on one side of the inner side of the frame, and a second cylinder is fixedly connected to one side of the outer wall of the frame by bolts. The output shaft of the second cylinder passes through the side wall of the frame and is fixedly connected to one side of the movable frame. Several rotating rods rotatably connected to the inner wall of the frame are provided at the bottom of the movable frame.

[0008] Preferably, each of the two clamping plates has a slider fixedly connected to its top, and both sliders are slidably connected to the top of the support frame via a groove.

[0009] Preferably, a bottom groove is provided at the bottom of the frame near the position between the two clamping plates, and a bottom frame is fixedly connected to the bottom of the frame, and a buffer frame is fixedly connected to the inner side of the bottom frame, with the bottom frame located at the bottom of the bottom groove.

[0010] Preferably, a feeding frame is fixedly connected to one side of the top of the frame, and the feeding frame is located at the top of the moving frame.

[0011] Preferably, the connections between the two hydraulic cylinders and the support frame are both sliding connections, and the connections between the first cylinder and the second cylinder and the frame are also sliding connections.

[0012] Preferably, both ends of all rotating rods are rotatably connected to the inner wall of the frame via a rotating shaft.

[0013] This utility model has the following beneficial effects:

[0014] This invention significantly improves the efficiency and safety of welded pipe straightening. By using a second cylinder to drive a moving frame, it achieves automatic feeding of the welded pipe, avoiding the safety hazards and inefficiencies associated with manual feeding. This addresses the technical problem mentioned in the background art, where manual movement of the welded pipe for feeding not only poses safety risks but also significantly reduces processing efficiency. Simultaneously, the hydraulically driven clamping plate and arc-shaped groove design ensure that the welded pipe receives uniform and stable extrusion force during straightening, guaranteeing consistency and accuracy in the straightening process. The supporting rod effectively prevents deformation of the welded pipe during straightening, further improving straightening quality. Furthermore, the device automatically collects the welded pipe; the straightened pipe falls smoothly into the buffer frame, facilitating subsequent processing and transportation, greatly improving production efficiency, reducing labor intensity, and ensuring operator safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the inner structure of the load-bearing frame of this utility model;

[0020] Figure 5 This is a top view of the inner side of the frame of this utility model.

[0021] In the diagram: 1. Frame; 2. Bearing frame; 3. Hydraulic cylinder; 4. Slider; 5. Slide groove; 6. Feed frame; 7. Moving frame; 8. Rotating rod; 9. Bearing rod; 10. First cylinder; 11. Bottom frame; 12. Second cylinder; 13. Clamping plate; 14. Arc groove; 15. Buffer frame; 16. Bottom groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-5A straightening device for easy loading of welded pipes is disclosed. The device includes a frame 1, with a support frame 2 fixedly connected to the inner side of the frame 1. Hydraulic cylinders 3 are bolted to both sides of the outer wall of the support frame 2. Clamping plates 13 are slidably connected to both sides of the inner side of the support frame 2. Arc-shaped grooves 14 on opposite sides of the clamping plates 13 allow them to closely contact the outer wall of the welded pipe. Driven by the hydraulic cylinders 3, the clamping plates 13 compress the welded pipe, gradually straightening it. The arc-shaped grooves 14 not only improve the straightening effect but also reduce frictional damage between the clamping plates 13 and the welded pipe. Arc-shaped grooves 14 are provided on opposite sides of the two clamping plates 13, and a support rod 9 is provided between the two arc-shaped grooves 14. The support rod 9, located between the two arc-shaped grooves 14, provides stable support inside the welded pipe through the drive of a first cylinder 10. During the straightening process, the bearing rod 9 effectively prevents the welded pipe from deforming due to extrusion, ensuring the quality of the straightened welded pipe. A first cylinder 10 is fixedly connected to one side of the outer wall of the frame 1 by bolts, and the output shaft of the first cylinder 10 passes through the side wall of the frame 1 and is fixedly connected to one end of the bearing rod 9. A movable frame 7 is provided on one side of the inner side of the frame 1, and a second cylinder 12 is fixedly connected to one side of the outer wall of the frame 1 by bolts, and the output shaft of the second cylinder 12 passes through the side wall of the frame 1 and is fixedly connected to one side of the movable frame 7. Several rotating rods 8 are provided at the bottom of the movable frame 7 and are rotatably connected to the inner wall of the frame 1. The rotating rods 8 at the bottom of the movable frame 7 are rotatably connected to the inner wall of the frame 1 through a rotating shaft. The rotating rods 8 can rotate freely, adapting to the slight movement and deformation of the welded pipe during the straightening process, reducing the friction and resistance between the welded pipe and the rotating rods 8, and allowing the welded pipe to move more smoothly on the rotating rods 8.

[0024] Furthermore, the top of each of the two clamping plates 13 is fixedly connected to a slider 4, and the two sliders 4 are slidably connected to the top of the bearing frame 2 through the slide groove 5. Driven by the hydraulic cylinder 3, the clamping plate 13 can move precisely along the trajectory of the slide groove 5, ensuring close contact between the arc groove 14 and the outer wall of the welded pipe, thereby improving the accuracy and efficiency of straightening, making the movement of the clamping plate 13 more stable, avoiding straightening errors caused by unstable movement, and achieving the effect of improving straightening quality and stability.

[0025] Furthermore, a bottom groove 16 is provided at the bottom of the frame 1 near the position between the two clamping plates 13, and a bottom frame 11 is fixedly connected to the bottom of the frame 1. A buffer frame 15 is fixedly connected to the inner side of the bottom frame 11. The bottom frame 11 is located at the bottom of the bottom groove 16. The straightened welded pipe can fall smoothly into the buffer frame 15, realizing the automatic storage of the welded pipe. The bottom groove 16 provides a falling channel for the welded pipe, the bottom frame 11 supports the entire storage structure, and the buffer frame 15 plays the role of reducing the impact of the welded pipe falling and protecting the welded pipe. This not only improves work efficiency but also avoids damage to the welded pipe during storage, achieving the effect of improving production efficiency and protecting the welded pipe.

[0026] Furthermore, a feeding frame 6 is fixedly connected to the top side of the frame 1, and the feeding frame 6 is located on the top of the moving frame 7. This allows the operator to more easily place the welded pipe on the top of the rotating rod 8 and further ensure that the position of the welded pipe is inside the moving frame 7. The feeding frame 6 plays the role of guiding the welded pipe into the straightening device, making the feeding process smoother and more accurate.

[0027] Furthermore, the connections between the two hydraulic cylinders 3 and the support frame 2 are both sliding connections, and the connections between the first cylinder 10 and the second cylinder 12 and the frame 1 are also sliding connections.

[0028] Furthermore, both ends of all rotating rods 8 are rotatably connected to the inner wall of frame 1 via rotating shafts. The rotating rods 8 can rotate freely, thus adapting to the slight movements and deformations of the welded pipe during the straightening process. This rotatable connection method reduces the friction and resistance between the welded pipe and the rotating rods 8, allowing the welded pipe to move more smoothly on the rotating rods 8. This not only improves the smoothness of the straightening process but also prevents the welded pipe from being damaged by friction, achieving the effects of protecting the welded pipe and improving straightening efficiency.

[0029] In summary:

[0030] First, the operator guides the welded pipe to be straightened through the feeding frame 6, conveniently placing it on top of all the rotating rods 8, ensuring the pipe is accurately positioned inside the moving frame 7. The design of the feeding frame 6 makes the feeding process smoother and more accurate, improving feeding efficiency while reducing operational difficulty. At this point, the center of the welded pipe, the center of the bearing rod 9, and the centers of the two arc grooves 14 are all on the same horizontal line, which is crucial for the accuracy and effectiveness of the straightening device. Next, the second cylinder 12 is activated, and its output shaft drives the moving frame 7 to move along the inner side of the frame 1. The rotating rods 8 at the bottom of the moving frame 7 are rotatably connected to the inner wall of the frame 1 via a rotating shaft, allowing them to rotate freely and adapt to the slight movements and deformations of the welded pipe during movement, reducing friction and resistance. As the moving frame 7 moves, the welded pipe is smoothly driven towards the bearing rod 9 until one end of the pipe is fitted onto the bearing rod 9. This step achieves automatic feeding of the welded pipe, completely avoiding the safety hazards and inefficiencies that may arise from manual feeding. Subsequently, two hydraulic cylinders 3 are simultaneously activated, connected to the support frame 2 via a sliding connection, driving the clamping plates 13 on both sides to move towards the welded pipe. The slider 4 fixed to the top of the clamping plate 13 slides within the groove 5, ensuring the clamping plate 13 can move precisely along the trajectory of the groove 5. The arc-shaped groove 14 on the clamping plate 13 is in close contact with the outer wall of the welded pipe, compressing and straightening it. During the straightening process, the moving frame 7 continues to move driven by the second cylinder 12, causing the welded pipe to be gradually straightened under the continuous compression of the clamping plate 13. The support rod 9 provides stable support inside the welded pipe, effectively preventing deformation during straightening and ensuring straightening quality. After the welded pipe is straightened, the first cylinder 10 is activated first, its output shaft driving the support rod 9 to be smoothly pulled out of the welded pipe. Then, the two hydraulic cylinders 3 move in opposite directions, causing the clamping plate 13 to detach from the welded pipe. At this time, the straightened welded pipe falls along the bottom groove 16 into the buffer frame 15 in the bottom frame 11. The bottom groove 16 provides a channel for the welded pipe to fall, the bottom frame 11 supports the entire storage structure, and the buffer frame 15 reduces the impact of the falling welded pipe and protects it. This design not only improves work efficiency but also prevents damage to the welded pipe during storage, achieving automatic storage and protection of the welded pipe.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A straightening device for easy loading of welded pipes, comprising a frame (1), characterized in that, The inner side of the frame (1) is fixedly connected to a bearing frame (2), and both sides of the outer wall of the bearing frame (2) are fixedly connected to hydraulic cylinders (3) by bolts. Both sides of the inner side of the bearing frame (2) are slidably connected to clamps (13). An arc-shaped groove (14) is provided on one side of each clamp (13), and a bearing rod (9) is provided between the two arc-shaped grooves (14). A first cylinder (10) is fixedly connected to one side of the outer wall of the frame (1) by bolts. The output shaft of 10) passes through the side wall of the frame (1) and is fixedly connected to one end of the bearing rod (9). A movable frame (7) is provided on one side of the inner side of the frame (1), and a second cylinder (12) is fixedly connected to one side of the outer wall of the frame (1) by bolts. The output shaft of the second cylinder (12) passes through the side wall of the frame (1) and is fixedly connected to one side of the movable frame (7). Several rotating rods (8) that are rotatably connected to the inner wall of the frame (1) are provided at the bottom of the movable frame (7).

2. The straightening device for easy feeding in welded pipe processing according to claim 1, characterized in that, The top of each of the two clamping plates (13) is fixedly connected to a slider (4), and the two sliders (4) are slidably connected to the top of the support frame (2) through a groove (5).

3. The straightening device for easy feeding in welded pipe processing according to claim 1, characterized in that, The bottom of the frame (1) is provided with a bottom groove (16) near the position between the two clamps (13), and a bottom frame (11) is fixedly connected to the bottom of the frame (1), and a buffer frame (15) is fixedly connected to the inner side of the bottom frame (11). The bottom frame (11) is located at the bottom of the bottom groove (16).

4. A straightening device for easy feeding in welded pipe processing according to claim 1, characterized in that, A feeding frame (6) is fixedly connected to one side of the top of the frame (1), and the feeding frame (6) is located on top of the moving frame (7).

5. A straightening device for easy feeding in welded pipe processing according to claim 1, characterized in that, The connection between the two hydraulic cylinders (3) and the support frame (2) is a sliding connection, and the connection between the first cylinder (10) and the second cylinder (12) and the frame (1) is also a sliding connection.

6. A straightening device for easy feeding in welded pipe processing according to claim 1, characterized in that, Both ends of all the rotating rods (8) are rotatably connected to the inner wall of the frame (1) via a rotating shaft.

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