A seamless pipe bending device

Abstract

The utility model discloses a kind of seamless pipe bending device, belong to seamless pipe bending technical field, comprising: workbench and two mounting plates;Limiting groove, be opened in workbench upper end, the limiting plate of being adapted is equipped in the limiting groove, the mounting plate is located limiting plate upper end two sides;Two rectangular grooves, respectively be opened in two mounting plates, two The threaded rod is rotatably connected in rectangular groove;The utility model, by being set in the mounting plate upper end two relatively movable mounting frames, and the guiding wheel of multiple different sizes of its bottom end, can be accurately adjusted according to different size specifications seamless pipe, make guiding wheel can be closely fitted on the outer wall of seamless pipe, build a all-around, flexible positioning system, ensure that seamless pipe does not appear deviation or wobble in bending process, to ensure that bending operation can be smoothly, effectively completed, greatly improve the applicability of seamless pipe bending device to different specifications pipe.

Description

Technical Field

[0001] This utility model belongs to the field of seamless tube bending technology, specifically relating to a seamless tube bending device. Background Technology

[0002] Seamless pipe bending devices are mechanical equipment used for plastic bending and forming seamless steel pipes. Their core principle is to apply continuous and uniform pressure to the steel pipe using a bending die driven by mechanical force, causing the material to deform controllably at a preset radius and angle. This device typically consists of a worktable, a limiting unit, a bending unit, and a control system. It can process straight pipes into curved or angled fittings that meet engineering requirements, effectively eliminating residual stress after bending to improve product quality. Its modular design allows for quick clamping of different pipe diameters. Seamless pipe bending devices are widely used in petroleum geology, machinery manufacturing, chemical equipment, construction and decoration, and energy transmission.

[0003] Chinese Patent Publication No. CN221473123U discloses a bending device for seamless steel pipes, including a worktable with two symmetrically installed limiting units on both sides. These limiting units guide and limit the steel pipe. A bending unit is installed in the middle of the worktable, perpendicular to the two limiting units. The bending unit and the limiting units work together to achieve rapid bending of the steel pipe. This invention, by installing two limiting units on the worktable, provides stable rotational guidance and limiting for the steel pipe, ensuring smooth bending operations. The positions of the limiting units can be adjusted individually. The bending unit then provides power to bend the steel pipe. The bending amount can be controlled by the feed rate of a hydraulic cylinder. Furthermore, the bending components of the bending unit can be quickly disassembled and replaced, facilitating subsequent disassembly and maintenance, saving time and effort.

[0004] In practical use, this utility model can effectively limit the position of the pipe during operation. However, the existing seamless pipe bending devices mostly adopt a fixed design mode, which means that the device can only be adapted to the bending operation of seamless pipes of specific sizes and specifications. When faced with the processing needs of seamless pipes of different sizes and specifications, the existing devices expose their adaptability limitations due to the lack of size adjustment redundancy, which makes the applicability of the seamless pipe bending device somewhat lacking. Utility Model Content

[0005] This utility model proposes a seamless tube bending device to solve the problem of inconvenience in bending seamless tubes of different sizes and specifications in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seamless tube bending device, comprising: The workbench and two mounting plates; A limiting groove is provided on the upper end of the worktable, and a matching limiting plate is provided in the limiting groove. The mounting plate is located on both sides of the upper end of the limiting plate. Two rectangular slots are respectively opened in two mounting plates, and threaded rods are rotatably connected in both rectangular slots. The external threads on both sides of the threaded rods are arranged in opposite directions. Two support plates are respectively set on the upper sides of the mounting plate. The upper sides of the two support plates are rotatably connected to the mounting brackets, and the bottom ends of the mounting brackets are rotatably connected to multiple guide wheels.

[0007] To accommodate seamless tubes of different sizes and specifications, the multiple guide wheels are arranged in a ring around the central axis of the mounting frame, and the sizes of the multiple guide wheels are arranged in an increasing order.

[0008] In a preferred embodiment, a hydraulic cylinder is provided on one side of the upper end of the workbench, and an abutment plate is provided at the output end of the hydraulic cylinder, the abutment plate being arranged in an arc shape.

[0009] In a preferred embodiment, the mounting bracket is provided with multiple fixing holes, and a fixing rod is provided through one of the fixing holes on one side. A fixing groove adapted to the fixing rod is opened on one side of the upper end of the bearing plate, and the bottom end of the fixing rod is located in the fixing groove.

[0010] In a preferred embodiment, both of the bearing plates are provided with sliding plates at their bottom ends. The bottom ends of both sliding plates extend into rectangular grooves and are provided with threaded holes that are adapted to the threaded rod. The threaded rod passes through the two threaded holes and is threadedly connected to the side wall of the threaded holes.

[0011] In a preferred embodiment, a guide rod is provided in the rectangular groove, and both sliding plates are provided with guide holes adapted to the guide rod. The guide rod passes through the two guide holes and is slidably connected to the side wall of the guide hole.

[0012] In a preferred embodiment, the upper end of the limiting plate is provided with multiple limiting holes, and both mounting plates are provided with multiple fixing bolts that are adapted to the limiting holes, with the multiple fixing bolts respectively located in the multiple limiting holes.

[0013] To ensure the stability of the seamless tube bending operation, protective sleeves are provided on the outer sides of the multiple guide wheels, and multiple wear-resistant blocks arranged in a hemispherical shape are provided on the outer sides of the multiple anti-slip sleeves.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through two relatively movable mounting brackets set on the upper part of the mounting plate and multiple guide wheels of different sizes at the bottom, can make precise adjustments according to seamless tubes of different sizes and specifications, so that the guide wheels can fit tightly against the outer wall of the seamless tube, thus constructing a comprehensive and flexible positioning system. This ensures that the seamless tube will not shift or shake during the bending process, thereby ensuring that the bending operation can be completed smoothly and effectively, and greatly improving the applicability of the seamless tube bending device to tubes of different specifications. This invention, by setting anti-slip layers and wear-resistant blocks on the outer sides of multiple guide wheels, increases the friction between the guide wheels and the seamless tube during bending, preventing the tube from sliding and fixing its position during bending. This allows it to withstand the enormous pressure and friction generated during bending, reducing wear on the guide wheels and maintaining stable performance. The anti-slip layers and wear-resistant blocks work together to ensure the stability of the seamless tube during bending, preventing positional deviation and thus improving the overall stability of the seamless tube bending device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the mounting plate, mounting frame, and guide wheel of this utility model. Figure 3 This is a cross-sectional schematic diagram of the mounting plate, bearing plate, and mounting frame of the present utility model. Figure 4 This is a cross-sectional schematic diagram of the limiting plate and the mounting plate of this utility model.

[0016] In the diagram: 1. Workbench; 2. Mounting plate; 3. Limiting plate; 4. Threaded rod; 5. Bearing plate; 6. Mounting bracket; 7. Guide wheel; 8. Hydraulic cylinder; 9. Contact plate; 10. Fixing rod; 11. Sliding plate; 12. Guide rod; 13. Limiting hole; 14. Fixing bolt; 15. Protective sleeve; 16. Wear-resistant block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0018] Please see Figure 1-4 This utility model provides a seamless tube bending device, comprising: Workbench 1 and two mounting plates 2; A limiting groove is provided on the upper end of the workbench 1, and a matching limiting plate 3 is provided in the limiting groove. The mounting plate 2 is located on both sides of the upper end of the limiting plate 3. Two rectangular slots are respectively opened in two mounting plates 2, and threaded rods 4 are rotatably connected in both rectangular slots. The external threads on both sides of the threaded rods 4 are arranged in opposite directions. Two support plates 5 are respectively set on the upper sides of the mounting plate 2. The upper ends of the two support plates 5 are rotatably connected to the mounting brackets 6, and the bottom ends of the mounting brackets 6 are rotatably connected to multiple guide wheels 7.

[0019] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, multiple guide wheels 7 are arranged in a ring around the central axis of the mounting frame 6, and the size of the multiple guide wheels 7 is arranged in an increasing order.

[0020] Its design incorporates multiple guide wheels 7 arranged in ascending order of size, which allow it to fit tightly against the outer wall of seamless tubes of different sizes and specifications. This enables bending operations on seamless tubes of different sizes and specifications, making the seamless tube bending device more versatile.

[0021] Specifically, such as Figure 1 As shown, a hydraulic cylinder 8 is provided on one side of the upper end of the workbench 1. The hydraulic cylinder 8 is existing technology and will not be described in detail here. The output end of the hydraulic cylinder 8 is provided with a contact plate 9. The contact plate 9 is arranged in an arc shape. The arc-shaped contact plate 9 can effectively push the seamless tube to bend, thereby achieving the effect of bending it.

[0022] Specifically, such as Figure 3 As shown, the mounting bracket 6 has multiple fixing holes, and a fixing rod 10 is inserted through one of the fixing holes on one side. A fixing groove that matches the fixing rod 10 is opened on one side of the upper end of the bearing plate 5. The bottom end of the fixing rod 10 is located in the fixing groove. Through the multiple fixing holes on the upper end of the mounting bracket 6, and in conjunction with the fixing rod 10 on one side, the angle of the mounting bracket 6 can be flexibly adjusted, and its position can be locked during bending operations, thereby ensuring its stability for seamless bending.

[0023] Specifically, such as Figure 3 As shown, each of the two bearing plates 5 has a sliding plate 11 at its bottom end. The bottom ends of the two sliding plates 11 extend into the rectangular groove and are both provided with threaded holes that are compatible with the threaded rod 4. The threaded rod 4 passes through the two threaded holes and is threadedly connected to the side wall of the threaded holes. By rotating the threaded rod 4, the two sliding plates 11 can be moved. When the rotation stops, the position of the two sliding plates 11 can be locked according to the characteristics of the threaded rod 4, thereby limiting the position of the two bearing plates 5 and the multiple guide wheels 7.

[0024] Specifically, such as Figure 3As shown, a guide rod 12 is provided in the rectangular groove. Both sliding plates 11 are provided with guide holes that are adapted to the guide rod 12. The guide rod 12 passes through the two guide holes and is slidably connected to the side wall of the guide hole. The guide rod 12 can limit the position of the two sliding plates 11, prevent them from shifting their position when moving, and ensure the accuracy of bending the seamless tube.

[0025] Specifically, such as Figure 1 and Figure 4 As shown, the upper end of the limiting plate 3 is provided with multiple limiting holes 13, and both mounting plates 2 are provided with multiple fixing bolts 14 that are adapted to the limiting holes 13. The multiple fixing bolts 14 are respectively located in the multiple limiting holes 13. By using the multiple fixing bolts 14 on the upper end of the mounting plate 2 and the multiple limiting holes 13 on the upper end of the worktable 1, the two mounting plates 2 can be flexibly installed in different positions, so as to adapt to seamless tubes of different sizes and specifications. Example

[0026] Please see Figure 1-4 This utility model provides a seamless tube bending device, comprising: Workbench 1 and two mounting plates 2; A limiting groove is provided on the upper end of the workbench 1, and a matching limiting plate 3 is provided in the limiting groove. The mounting plate 2 is located on both sides of the upper end of the limiting plate 3. Two rectangular slots are respectively opened in two mounting plates 2, and threaded rods 4 are rotatably connected in both rectangular slots. The external threads on both sides of the threaded rods 4 are arranged in opposite directions. Two support plates 5 are respectively set on the upper sides of the mounting plate 2. The upper ends of the two support plates 5 are rotatably connected to the mounting brackets 6, and the bottom ends of the mounting brackets 6 are rotatably connected to multiple guide wheels 7.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, multiple guide wheels 7 are provided with protective sleeves 15 on their outer sides, and multiple anti-slip sleeves are provided with multiple wear-resistant blocks 16 arranged in a hemispherical shape on their outer sides.

[0028] Through its design, the protective sleeve 15 and multiple wear-resistant blocks 16 on the outside of the guide wheel 7 can improve the friction between the guide wheel 7 and the seamless tube, withstand the huge pressure and friction generated during bending, reduce the wear of the guide wheel 7, and maintain its stable performance.

[0029] See Figure 1-4When using a seamless tube bending device to bend seamless tubes, firstly, according to the size specifications of the seamless tube, install two mounting plates 2 at the corresponding positions of the limiting plate 3 and fix their positions with fixing bolts 14. Then, rotate the two mounting brackets 6 at the upper end of the mounting plate 2. The two mounting brackets 6 will drive multiple guide wheels 7 of different sizes to rotate, so that the guide wheel 7 that matches the seamless tube can rotate to one side of the seamless tube. Next, move the fixing rod 10 into the fixing groove to limit the position of the mounting bracket 6. Then rotate the threaded rod 4. The threaded rod 4 will drive the sliding plates 11 and the bearing plate 5 on both sides to move in opposite directions. The two bearing plates 5 will drive multiple mounting brackets 6 and multiple guide wheels 7 to move, so that the guide wheels 7 can abut against the outer wall of seamless tubes of different sizes. When bending, the hydraulic cylinder 8 needs to be activated. The output end of the hydraulic cylinder 8 will drive the abutment plate 9 to move, so that the abutment plate 9 abuts against one side of the seamless tube, thereby realizing the bending operation.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless tube bending device, characterized in that, include: Workbench (1) and two mounting plates (2); A limiting groove is provided on the upper end of the workbench (1), and a matching limiting plate (3) is provided in the limiting groove. The mounting plate (2) is located on both sides of the upper end of the limiting plate (3). Two rectangular slots are respectively opened in two mounting plates (2), and threaded rods (4) are rotatably connected in both rectangular slots. The external threads on both sides of the threaded rods (4) are arranged in opposite directions. Two support plates (5) are respectively set on the upper sides of the mounting plate (2). The upper ends of the two support plates (5) are rotatably connected to the mounting brackets (6), and the bottom ends of the mounting brackets (6) are rotatably connected to multiple guide wheels (7).

2. The seamless tube bending device according to claim 1, characterized in that: The multiple guide wheels (7) are arranged in a ring around the central axis of the mounting frame (6), and the size of the multiple guide wheels (7) is arranged in an increasing order.

3. The seamless tube bending device according to claim 1, characterized in that: A hydraulic cylinder (8) is provided on one side of the upper end of the workbench (1), and a contact plate (9) is provided at the output end of the hydraulic cylinder (8), and the contact plate (9) is arranged in an arc shape.

4. The seamless tube bending device according to claim 1, characterized in that: The mounting bracket (6) has multiple fixing holes, and a fixing rod (10) is inserted through one of the fixing holes on one side. The upper side of the bearing plate (5) has a fixing groove that matches the fixing rod (10), and the bottom end of the fixing rod (10) is located in the fixing groove.

5. A seamless tube bending device according to claim 1, characterized in that: Both of the bearing plates (5) are provided with sliding plates (11) at their bottom ends. The bottom ends of both sliding plates (11) extend into the rectangular groove and are provided with threaded holes that are compatible with the threaded rod (4). The threaded rod (4) passes through the two threaded holes and is threadedly connected to the side wall of the threaded hole.

6. A seamless tube bending device according to claim 5, characterized in that: The rectangular groove is provided with a guide rod (12), and both sliding plates (11) are provided with guide holes that are adapted to the guide rod (12). The guide rod (12) passes through the two guide holes and is slidably connected to the side wall of the guide hole.

7. A seamless tube bending device according to claim 1, characterized in that: The upper end of the limiting plate (3) is provided with multiple limiting holes (13), and both mounting plates (2) are provided with multiple fixing bolts (14) that are adapted to the limiting holes (13). The multiple fixing bolts (14) are respectively located in the multiple limiting holes (13).

8. A seamless tube bending device according to claim 1, characterized in that: Each of the guide wheels (7) is provided with a protective sleeve (15) on its outer side, and each of the protective sleeves (15) is provided with a plurality of wear-resistant blocks (16) arranged in a hemispherical shape on its outer side.

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