Hydraulic pipe bending machine for metal product machining

By using the clamping plate and limiting plate design of the hydraulic pipe bending machine, combined with the drive motor and hydraulic rod, precise bending of metal pipes is achieved, solving the problem of inconsistent bending positions in existing technologies and improving product quality consistency.

CN224181778UActive Publication Date: 2026-05-01WUHU TUOBO AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU TUOBO AUTO PARTS CO LTD
Filing Date
2025-04-14
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing metal pipe bending equipment struggles to ensure uniform bending height when mass-producing pipe fittings of different specifications or requiring precise bending positions, resulting in inconsistent product quality and increased scrap rate.

Method used

The hydraulic pipe bending machine uses a combination of clamping plates and limiting plates, and utilizes a drive motor and hydraulic rod to achieve precise positioning and bending of the metal pipe. Combined with the cooperation of the bending head and the positioning column, it achieves precise bending of the metal pipe.

Benefits of technology

It enables rapid and precise bending of metal tubes, avoiding the problem of inconsistent bending positions in mass production and improving product quality consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of metal product machining, and discloses a hydraulic pipe bending machine for metal product machining, which comprises a working table, two grooves are arranged on the upper surface of the working table, a screw rod is rotatably connected in one groove, a screw rod is rotatably connected in the other groove, and a screw rod is rotatably connected in the other groove. The surface of the threaded rod is sleeved with a threaded sleeve in a threaded mode, clamping plates are fixedly connected to the upper surface of the threaded sleeve and the upper surface of the workbench, a short plate is fixedly connected to the upper surface of the workbench, a hydraulic rod is fixedly connected to the surface of the short plate, and a bending head is fixedly connected to the output end of the hydraulic rod. A connecting plate is fixedly connected to the upper surface of the workbench, a threaded hole is formed in the surface of the connecting plate, and a lead screw is connected to the interior of the threaded hole in a threaded and sleeved mode. When the pipe bending machine is used, a metal pipe can be rapidly bent, meanwhile, the bending position can be adjusted and controlled, and the situation that the bending positions are not uniform during batch bending is avoided.
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Description

A hydraulic pipe bending machine for metal product processing Technical Field

[0001] This utility model relates to the field of metal product processing technology, specifically a hydraulic pipe bending machine for metal product processing. Background Technology

[0002] Metal pipes are straight when they are first manufactured, but in use, pipes with different bending shapes are often required, which means that the pipes need to be bent.

[0003] A metal tube bending device, disclosed in publication CN 218424989 U, includes a base, a rotating rod rotatably connected between two sets of fixed blocks, a stop block in the middle of the rotating rod, a drive motor mounted on one set of fixed blocks, and sliders threadedly connected to the outer walls of both ends of the rotating rod. A metal tube fixing component is mounted on one set of sliders, and an arc-shaped bending component that cooperates with the metal tube fixing component is mounted on the other set of sliders. This invention achieves bending by creating oppositely oriented threaded grooves on both sides of the rotating rod, then mounting the cooperating metal tube fixing component and arc-shaped bending component on the outer walls of the threaded grooves on both sides, and finally driving the rotating rod to rotate via the drive motor, causing the metal tube fixing component and the arc-shaped bending component to slide closer together. During the entire bending process, the metal tube and the bending component can slide closer together simultaneously, thereby reducing the stroke of the bending component, greatly improving bending efficiency, and increasing production speed.

[0004] However, the above-mentioned device still has some shortcomings in use. Its control accuracy of the bending position of metal tubes is limited. When mass-producing tubes of different specifications or requiring precise bending positions, it is difficult to ensure the uniformity of the bending position, which may lead to inconsistent product quality and increase the scrap rate. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a hydraulic pipe bending machine for metal product processing, which solves the problem of limited control precision in the bending position of metal pipes. When mass-producing pipes of different specifications or requiring precise bending positions, it is difficult to ensure the uniformity of the bending position, which may lead to inconsistent product quality and increase the scrap rate.

[0006] This utility model provides the following technical solution: a hydraulic pipe bending machine for processing metal products, including a worktable, two grooves are formed on the upper surface of the worktable, a screw is rotatably connected inside one of the grooves, a threaded sleeve is threaded onto the surface of the screw, a clamping plate is fixedly connected to the upper surface of the threaded sleeve and the upper surface of the worktable, a short plate is fixedly connected to the upper surface of the worktable, a hydraulic rod is fixedly connected to the surface of the short plate, and a bending head is fixedly connected to the output end of the hydraulic rod;

[0007] A connecting plate is fixedly connected to the upper surface of the workbench. A threaded hole is opened on the surface of the connecting plate. A lead screw is threaded into the inside of the threaded hole. A limit plate is rotatably installed at one end of the lead screw.

[0008] Preferred technical solution 1: A sliding rod is fixedly connected inside another groove, and a sliding sleeve is slidably sleeved on the surface of the sliding rod, and the sliding sleeve is fixedly connected to the corresponding clamping plate.

[0009] Preferred technical solution 2: A limiting hole is formed on the surface of the connecting plate, and a limiting rod is slidably sleeved inside the limiting hole, and the limiting rod is fixedly connected to the limiting plate.

[0010] Preferred technical solution 3: The opposing surfaces of the two clamping plates are provided with mounting grooves that match the metal tubes, and rubber pads are fixedly bonded inside the two mounting grooves. The surfaces of the two rubber pads are provided with anti-slip textures.

[0011] Preferred technical solution four: A positioning post is fixedly connected to the upper surface of the workbench, and the positioning post corresponds to the clamp plate fixedly connected to the workbench.

[0012] Preferred technical solution five: A drive motor is fixedly connected to the side of the worktable, and the output end of the drive motor extends into the interior of one of the grooves and is fixedly connected to one end of the screw.

[0013] Compared with the prior art, this utility model provides a hydraulic pipe bending machine for metal product processing, which has the following beneficial effects: In use, the metal pipe to be bent is placed between two clamping plates, and then the limiting plate is adjusted according to the bending position. By rotating the screw, the limiting plate is moved, and one end of the metal pipe is brought close to the limiting plate, thereby controlling the position of one end of the metal pipe and thus controlling the bending position. Then, the rotation of the drive motor drives the screw to rotate, thereby moving the screw sleeve and the connected clamping plate. The two clamping plates clamp and fix the metal pipe. After the metal pipe is fixed, the extension of the hydraulic rod drives the bending head to move. The bending head cooperates with the positioning column to bend the metal pipe, which is convenient and fast. This pipe bending machine can quickly bend metal pipes during use, and the bending position can be adjusted and controlled at the same time to avoid inconsistent bending positions when bending in batches. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of this utility model;

[0015] Figure 2 is an exploded view of part of the structure of this utility model;

[0016] Figure 3 is an exploded view of the connecting plate and limiting plate structure of this utility model.

[0017] In the diagram: 1. Workbench; 2. Groove; 3. Screw; 4. Screw sleeve; 5. Clamping plate; 6. Short plate; 7. Hydraulic rod; 8. Bending head; 9. Connecting plate; 10. Threaded hole; 11. Lead screw; 12. Limiting plate; 13. Sliding rod; 14. Sliding sleeve; 15. Limiting hole; 16. Limiting rod; 17. Mounting groove; 18. Positioning column; 19. Drive motor. Detailed Implementation

[0018] Please refer to Figure 1-3.

[0019] Example 1: A hydraulic pipe bending machine for processing metal products includes a worktable 1. Two grooves 2 are formed on the upper surface of the worktable 1. A screw 3 is rotatably connected inside one of the grooves 2. A threaded sleeve 4 is threaded onto the surface of the screw 3. A clamping plate 5 is fixedly connected to the upper surface of the threaded sleeve 4 and the upper surface of the worktable 1. A short plate 6 is fixedly connected to the upper surface of the worktable 1. A hydraulic rod 7 is fixedly connected to the surface of the short plate 6. A bending head 8 is fixedly connected to the output end of the hydraulic rod 7.

[0020] A connecting plate 9 is fixedly connected to the upper surface of the workbench 1. A threaded hole 10 is opened on the surface of the connecting plate 9. A lead screw 11 is threaded inside the threaded hole 10. A limit plate 12 is rotatably installed at one end of the lead screw 11.

[0021] Example 2: The difference between this example and Example 1 is that a sliding rod 13 is fixedly connected inside another groove 2, and a sliding sleeve 14 is slidably sleeved on the surface of the sliding rod 13. The sliding sleeve 14 is fixedly connected to the corresponding clamping plate 5.

[0022] Example 3: The difference between this example and Example 1 is that a limiting hole 15 is provided on the surface of the connecting plate 9, and a limiting rod 16 is slidably sleeved inside the limiting hole 15. The limiting rod 16 is fixedly connected to the limiting plate 12.

[0023] Example 4: The difference between this example and Example 1 is that the two clamping plates 5 are provided with mounting grooves 17 that match the metal tube on their opposite surfaces. Rubber pads are fixedly bonded inside the two mounting grooves 17, and anti-slip textures are provided on the surface of the two rubber pads.

[0024] Example 5: The difference between this example and Example 1 is that a positioning post 18 is fixedly connected to the upper surface of the workbench 1, and the positioning post 18 corresponds to the clamping plate 5 fixedly connected to the workbench 1.

[0025] Example 6: The difference between this example and Example 1 is that a drive motor 19 is fixedly connected to the side of the workbench 1, and the output end of the drive motor 19 extends into the interior of one of the grooves 2 and is fixedly connected to one end of the screw 3.

[0026] In summary, this hydraulic pipe bending machine for metal product processing allows for convenient and quick bending of metal pipes. The metal pipe to be bent is placed between two clamping plates 5. The limiting plate 12 is then adjusted according to the bending position. Rotating the screw 11 moves the limiting plate 12, bringing one end of the metal pipe closer to it, thus controlling the position of that end and allowing for precise bending. The drive motor 19 rotates the screw 3, which in turn moves the screw sleeve 4 and the connected clamping plates 5, clamping the metal pipe tightly. Once the metal pipe is fixed, the extension of the hydraulic rod 7 moves the bending head 8. The bending head 8, in conjunction with the positioning column 18, bends the metal pipe. This convenient and quick bending machine allows for rapid bending of metal pipes and precise adjustment of the bending position, preventing inconsistent bending positions during batch bending.

Claims

1. A hydraulic pipe bending machine for processing metal products, comprising a worktable (1), characterized in that: The upper surface of the workbench (1) has two grooves (2), one of which is rotatably connected to a screw (3). The surface of the screw (3) is threaded with a threaded sleeve (4). The upper surface of the threaded sleeve (4) and the upper surface of the workbench (1) are both fixedly connected to a clamping plate (5). The upper surface of the workbench (1) is fixedly connected to a short plate (6). The surface of the short plate (6) is fixedly connected to a hydraulic rod (7). The output end of the hydraulic rod (7) is fixedly connected to a bending head (8). The upper surface of the workbench (1) is fixedly connected to a connecting plate (9). The surface of the connecting plate (9) is provided with a threaded hole (10). The threaded hole (10) is threaded with a lead screw (11). One end of the lead screw (11) is rotatably mounted with a limit plate (12).

2. The hydraulic pipe bending machine for metal product processing according to claim 1, characterized in that: Another groove (2) is fixedly connected to a slide rod (13), and a slide sleeve (14) is slidably sleeved on the surface of the slide rod (13). The slide sleeve (14) is fixedly connected to the corresponding clamping plate (5).

3. The hydraulic pipe bending machine for metal product processing according to claim 2, characterized in that: The surface of the connecting plate (9) is provided with a limiting hole (15), and a limiting rod (16) is slidably sleeved inside the limiting hole (15). The limiting rod (16) is fixedly connected to the limiting plate (12).

4. A hydraulic pipe bending machine for processing metal products according to claim 3, characterized in that: The opposing surfaces of the two clamps (5) are provided with mounting grooves (17) that match the metal tubes. Rubber pads are fixedly bonded inside the two mounting grooves (17), and anti-slip textures are provided on the surfaces of the two rubber pads.

5. A hydraulic pipe bending machine for processing metal products according to claim 4, characterized in that: The upper surface of the workbench (1) is fixedly connected to a positioning post (18), which corresponds to the clamping plate (5) fixedly connected to the workbench (1).

6. A hydraulic pipe bending machine for processing metal products according to claim 5, characterized in that: A drive motor (19) is fixedly connected to the side of the workbench (1), and the output end of the drive motor (19) extends into the interior of one of the grooves (2) and is fixedly connected to one end of the screw (3).

Citation Information

Patent Citations

  • Metal pipe bending device

    CN218424989U