Metal pipe bending device

Abstract

The utility model belongs to the technical field of metal pipe bending, and particularly relates to a metal pipe bending device which comprises a workbench, a fixing wheel is arranged on one side of the upper side face of the workbench, a rail rod is arranged on the edge of one side of the upper side face of the workbench, and fixing blocks are arranged on the side, close to the fixing wheel, of the rail rod in parallel. Hydraulic telescopic rods are arranged on the sides, away from the rail rods, of the fixing blocks, pressing wheels and limiting blocks are arranged at the output ends of the two hydraulic telescopic rods correspondingly, and a fan is arranged on one side of the lower side face of the workbench. During bending, the air spraying head is inserted into one end, far away from the fixed wheel, of the metal pipe, the fan is started, the fan blows air to the air spraying head through the connecting pipe and the connector, the air spraying head blows air into the metal pipe, air flow can be quickly blown to the other end of the metal pipe to be discharged, and the discharged air flow can directly take out chippings generated in the metal pipe. And chippings generated during bending can be conveniently and rapidly treated.

Description

Technical Field

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

[0002] In industrial production, the orientation and angle of metal pipes need to be changed to adapt to different working conditions. For example, pipe layouts require various angles and bends to accommodate different spatial arrangements and operational needs. Bending processes effectively control the length and shape of the pipes to perfectly meet the required design specifications. In some special applications, such as shipbuilding, bridges, and automobiles, pipes also require reinforcement and stabilization to prevent breakage or deformation during operation. Bending processes can generate internal tensile stress in certain areas of the pipe, thereby increasing its strength and stability.

[0003] When metal pipes are bent by a bending machine, the surface of the metal pipe is deformed. The outer wall of the pipe is bent and expanded, while the inner wall is bent and squeezed. This causes some oxide layers and other components on the surface of the metal pipe to fall off. The material can fall directly off the outer wall, but the material falling off the inner wall will remain inside the bent metal pipe, which is inconvenient to handle. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a metal tube bending device that solves the problem that when metal tubes are bent by a bending machine, due to the deformation of the metal tube surface, the outer wall of the tube expands during bending, and the inner wall is squeezed and closed, some oxide layers and other components on the surface of the metal tube will fall off. The outer wall can fall directly out, but the fallen material on the inner wall will remain inside the bent metal tube, which is inconvenient to handle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a metal tube bending device, comprising a workbench, a fixed wheel provided on one side of the upper side of the workbench, a rail provided on one edge of the upper side of the workbench, a fixed block provided side by side on the side of the rail near the fixed wheel, and a hydraulic telescopic rod provided on the side of the fixed block away from the rail, the output ends of the two hydraulic telescopic rods respectively provided with a pressure roller and a limiting block, a fan provided on one side of the lower side of the workbench, a connecting pipe connected to the output end of the fan, a connector provided to the upper side of the connecting pipe, an air jet head connected to the connector, a metal tube inserted into the air jet head, and a limiting block disposed between the pressure roller and the connector.

[0006] The beneficial effects of this utility model are as follows: When bending, simply insert the jet nozzle into the end of the metal tube away from the fixed wheel, start the fan, and the fan blows air into the jet nozzle through the connecting pipe and the connecting head. The jet nozzle blows air into the metal tube, and the airflow can be quickly blown to the other end of the metal tube and discharged. The discharged airflow can directly carry out the debris generated inside the metal tube, which is convenient for quickly processing the debris generated during bending.

[0007] To facilitate the replacement of different sized fixing wheels for different metal tubes;

[0008] As a further improvement to the above technical solution: a circular opening is provided on the upper side of the workbench corresponding to the fixed wheel, and an electric telescopic rod is provided on the lower side of the workbench directly opposite the circular opening. A threaded rod is provided at the upper end of the electric telescopic rod, and the threaded rod is inserted into the fixed wheel. There are three fixed wheels, and the diameter of the fixed wheels gradually decreases from bottom to top. The inner diameter of the circular opening is larger than the diameter of the largest fixed wheel. Nuts are threadedly fixed to the threaded rod on the lower side of the fixed wheel.

[0009] The beneficial effects of this improvement are: the height of the pressure roller corresponding to different fixed rollers can be adjusted, making it convenient to replace fixed rollers of different sizes according to different metal pipes.

[0010] For use in adjusting the position of the pressure roller and the limit block;

[0011] As a further improvement to the above technical solution: a slide rail is provided on the side of the rail rod, and a locking block is slidably provided on the inner side of the slide rail, and the locking block is fixedly connected to the fixing block.

[0012] The beneficial effect of this improvement is that it can be used to adjust the position of the pressure roller and the limit block.

[0013] For use in fixing the pressure roller and the limit block;

[0014] As a further improvement to the above technical solution: a pressure plate is fixedly provided on the upper side of the fixing block, the pressure plate covers the upper side of the rail rod, and a bolt is threaded on the upper side of the pressure plate, the bolt passing through the pressure plate and contacting the rail rod.

[0015] The beneficial effects of this improvement are: the pressure plate slides with the fixed block, and the pressure plate is fixed by tightening the bolts, which is used to fix the pressure roller and the limit block.

[0016] To block the blown debris;

[0017] As a further improvement to the above technical solution: a baffle is provided on the upper side of the workbench on the side of the fixed wheel away from the rail.

[0018] The beneficial effects of this improvement are: the baffle can block the blown debris, preventing it from flying too far and becoming difficult to collect and process.

[0019] To facilitate quick and easy removal and replacement of the baffle;

[0020] As a further improvement to the above technical solution: clamping rods are symmetrically arranged on both sides of the baffle, and the baffle is directly inserted between the clamping rods.

[0021] The beneficial effects of this improvement are: the clamping rod clamps the baffle, which facilitates quick disassembly and replacement of the baffle.

[0022] To accommodate the insertion of connectors into metal pipes of different diameters;

[0023] As a further improvement to the above technical solution: rubber rings are equidistantly arranged on the outer side of the jet head, and the rubber rings are in contact with the inner wall of the metal tube.

[0024] The beneficial effects of this improvement are: the rubber ring can be bent into metal pipes of different diameters within a certain range and maintain a sealed fit with the metal pipe, thus satisfying the insertion of the connector into metal pipes of different diameters.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the connection structure of the pressure wheel in this utility model;

[0029] Figure 4 This is a side sectional view of the connection structure of the jet head in this utility model;

[0030] In the diagram: 1. Workbench; 2. Fixed wheel; 3. Rail; 4. Fixed block; 5. Hydraulic telescopic rod; 6. Pressure wheel; 7. Clamping block; 8. Pressure plate; 9. Bolt; 10. Fan; 11. Connecting pipe; 12. Connector; 13. Jet nozzle; 14. Rubber ring; 15. Limiting block; 16. Baffle; 17. Clamping rod; 18. Round opening; 19. Electric telescopic rod; 20. Threaded rod. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0032] like Figure 1 — Figure 4The following describes a metal tube bending device: a workbench 1, a fixed wheel 2 on one side of the upper surface of the workbench 1, a rail 3 on one edge of the upper surface of the workbench 1, a fixed block 4 arranged side by side on the side of the rail 3 near the fixed wheel 2, and a hydraulic telescopic rod 5 on the side of the fixed block 4 away from the rail 3. The output ends of the two hydraulic telescopic rods 5 are respectively provided with a pressure roller 6 and a limiting block 15. A fan 10 is arranged on one side of the lower surface of the workbench 1, and a connecting pipe 11 is connected to the output end of the fan 10. A connector 12 is connected from the output end of the connecting pipe 11 to the upper surface of the workbench 1, and an air jet 13 is connected to the connector 12. A metal tube is inserted into the air jet 13. The limiting block 15... Located between the pressure roller 6 and the connector 12, during bending, the jet nozzle 13 is inserted into the end of the metal tube furthest from the fixed roller 2, and the blower 10 is started. The blower 10 blows air into the jet nozzle 13 through the connecting pipe 11 and the connector 12. The jet nozzle 13 blows air into the metal tube, and the airflow can quickly blow to the other end of the metal tube and be discharged. The discharged airflow can directly carry out the debris generated inside the metal tube, facilitating quick processing of the debris generated during bending. The upper side of the workbench 1 has a circular opening 18 corresponding to the fixed roller 2, and the lower side of the workbench 1 is provided with an electric telescopic rod 19 opposite the circular opening 18. The upper end of the electric telescopic rod 19 is provided with a threaded rod 20, which is inserted into the fixed roller 2. There are three fixed rollers 2. The diameter gradually decreases from bottom to top. The inner diameter of the circular opening 18 is larger than the diameter of the largest fixed wheel 2. Nuts are threadedly fixed to the downward side of the fixed wheel 2 on the threaded rod 20, which can adjust the height of the pressure wheel 6 corresponding to different fixed wheels 2, making it convenient to replace fixed wheels 2 of different sizes according to different metal pipes. A slide rail is provided on the side of the rail rod 3. A locking block 7 is slidably provided on the inner side of the slide rail. The locking block 7 is fixedly connected to the fixed block 4 and is used to adjust the position of the pressure wheel 6 and the limiting block 15. A pressure plate 8 is fixedly provided on the upper side of the fixed block 4. The pressure plate 8 covers the upper side of the rail rod 3. A bolt 9 is threaded on the upper side of the pressure plate 8. The bolt 9 passes through the pressure plate 8 and contacts the rail rod 3. The pressure plate 8 slides with the fixed block 4. Tightening the bolt 9 puts pressure on the pressure plate 8. The worktable 1 has a baffle 16 on the upper side of the worktable 1, on the side of the fixed wheel 2 away from the rail rod 3. The baffle 16 can block the blown debris and prevent the debris from flying too far and being difficult to collect and process. The baffle 16 has clamping rods 17 symmetrically arranged on both sides of the baffle 16. The baffle 16 is directly inserted between the clamping rods 17. The clamping rods 17 clamp the baffle 16, which is convenient for quick disassembly and replacement. The outer side of the jet head 13 has rubber rings 14 equidistantly arranged. The rubber rings 14 contact the inner wall of the metal tube. The rubber rings 14 can be bent into metal tubes of different diameters within a certain range and maintain a sealed fit with the metal tube, so as to meet the insertion of the connector 12 into metal tubes of different diameters.

[0033] Working principle and usage process of this utility model:

[0034] In use, place the metal tube on the side of the fixed wheel 2 closest to the pressure wheel 6, with the metal tube pressed tightly against the fixed wheel 2. Activate the hydraulic telescopic rod 5, which pushes the pressure wheel 6 and the limiting block 15 to contact the metal tube. The limiting block 15 then remains stationary, limiting the metal tube's position. The pressure wheel 6 continues to push the metal tube, causing it to bend against the outer circumference of the fixed wheel 2. During bending, debris will fall from the inside of the metal tube. Simply insert the air jet 13 into the end of the metal tube furthest from the fixed wheel 2 during bending, and activate the blower 10. The blower 10 blows air into the air jet 13 through the connecting pipe 11 and the connecting head 12. The air jet 13 blows air into the metal tube, and the airflow quickly exits to the other end of the metal tube, directly carrying away the debris generated inside the metal tube, facilitating rapid processing of the debris generated during bending. Furthermore, the electric telescopic rod 19... The outlet end drives the fixed wheel 2 to move up and down along the pressure plate 8 via the threaded rod 20, which can adjust the height of the pressure wheel 6 corresponding to different fixed wheels 2, making it easy to replace fixed wheels 2 of different sizes according to different metal pipes. In addition, during use, the fixed block 4 slides along the rail rod 3 via the locking block 7 to adjust the position of the pressure wheel 6 and the limiting block 15. In addition, the pressure plate 8 slides with the fixed block 4, and the bolts 9 are tightened to fix the pressure plate 8, which is used to fix the pressure wheel 6 and the limiting block 15. In addition, a baffle 16 is set to block the blown debris, so as to prevent the debris from flying too far and being difficult to collect and handle. In addition, a clamping rod 17 is set to clamp the baffle 16, which is convenient for quick disassembly and replacement of the baffle 16. In addition, the rubber ring 14 can be bent into metal pipes of different diameters within a certain range and maintain a sealed fit with the metal pipe, thereby satisfying the insertion of the connector 12 with metal pipes of different diameters.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A metal tube bending device, characterized in that: The workbench (1) includes a fixed wheel (2) on one side of its upper side and a rail rod (3) on one edge of its upper side. A fixed block (4) is arranged side by side on the side of the rail rod (3) near the fixed wheel (2). A hydraulic telescopic rod (5) is arranged on the side of the fixed block (4) away from the rail rod (3). A pressure wheel (6) and a limiting block (15) are respectively arranged at the output ends of the two hydraulic telescopic rods (5). A fan (10) is arranged on one side of the lower side of the workbench (1). A connecting pipe (11) is connected to the output end of the fan (10). A connector (12) is connected to the output end of the connecting pipe (11) and to the upper side of the workbench (1). An air jet (13) is connected to the connector (12). A metal pipe is inserted into the air jet (13). The limiting block (15) is arranged between the pressure wheel (6) and the connector (12).

2. The metal tube bending device according to claim 1, characterized in that: The upper side of the workbench (1) has a circular opening (18) corresponding to the fixed wheel (2). The lower side of the workbench (1) is provided with an electric telescopic rod (19) directly opposite the circular opening (18). The upper end of the electric telescopic rod (19) is provided with a threaded rod (20). The threaded rod (20) is inserted into the fixed wheel (2). There are three fixed wheels (2). The diameter of the fixed wheels (2) gradually decreases from bottom to top. The inner diameter of the circular opening (18) is larger than the diameter of the largest fixed wheel (2). The threaded rod (20) is threaded with a nut on the lower side of the fixed wheel (2).

3. The metal tube bending device according to claim 1, characterized in that: The rail (3) has a slide rail on its side, and a locking block (7) is slidably provided on the inner side of the slide rail. The locking block (7) is fixedly connected to the fixing block (4).

4. The metal tube bending device according to claim 1, characterized in that: A pressure plate (8) is fixedly installed on the upper side of the fixing block (4). The pressure plate (8) covers the upper side of the rail rod (3). A bolt (9) is threaded on the upper side of the pressure plate (8). The bolt (9) passes through the pressure plate (8) and contacts the rail rod (3).

5. A metal tube bending device according to claim 1, characterized in that: A baffle (16) is provided on the upper side of the workbench (1) on the side of the fixed wheel (2) away from the rail (3).

6. A metal tube bending device according to claim 5, characterized in that: The baffle (16) is symmetrically provided with clamping rods (17) on both sides, and the baffle (16) is directly inserted between the clamping rods (17).

7. A metal tube bending device according to claim 1, characterized in that: Rubber rings (14) are equidistantly arranged on the outer side of the jet head (13), and the rubber rings (14) are in contact with the inner wall of the metal tube.

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