A pipe bending mechanism applied to a pipe bender

By designing a positioning component on the pipe bending machine, the steel pipe is positioned and clamped using a drive motor and a two-way screw system. This solves the problem of inaccurate positioning of the steel pipe during the feeding of the pipe bending machine, and improves the accuracy of pipe bending and the ease of operation.

CN224346714UActive Publication Date: 2026-06-12ZHANGJIAGANG MINGHUA MACHINERY MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG MINGHUA MACHINERY MFG
Filing Date
2025-02-20
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing pipe bending machine does not achieve ideal positioning of the steel pipe during feeding, causing one end to tilt during bending and affecting the bending effect.

Method used

A pipe bending mechanism including a positioning component was designed. The drive motor drives the bidirectional lead screw to rotate, which causes the sliding block to move the mounting frame and the transmission roller, thereby achieving the positioning and clamping of the steel pipe. The drive component drives the transmission roller to rotate, ensuring that the steel pipe does not tilt during bending.

Benefits of technology

It effectively prevents one end of the steel pipe from tilting during bending, improving the accuracy and convenience of bending.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224346714U_ABST
    Figure CN224346714U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of pipe bending mechanism applied to pipe bender, it is related to pipe bender technical field, including workbench, the top of workbench is provided with bearing frame, and the top of bearing frame is provided with positioning hydraulic cylinder, the side of bearing frame is provided with clamping hydraulic cylinder, the adjacent side of bearing frame is provided with pipe bending group, the top side of workbench is provided with positioning assembly.The utility model is positioned to the steel pipe needing to be bent by the positioning assembly of being set, is rotated by the bidirectional screw rod driven by the driving motor of being set, so that two sliding blocks drive mounting frame and transmission roller move to opposite direction, so that mounting frame and transmission roller realize the positioning clamping of steel pipe, prevent when bending pipe, the end of steel pipe is inclined, affect bending angle, and the transmission roller is rotated by the driving element of being set, and the transmission roller of two sides is rotated to the same direction, so as to realize the feeding of steel pipe, improve the use convenience of device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipe bending machine technology, and in particular to a pipe bending mechanism applied to a pipe bending machine. Background Technology

[0002] A pipe bending machine is a machine used for bending pipes and can also be used as a jack. It is generally divided into CNC pipe bending machines and hydraulic pipe bending machines. It is used in pipeline laying and repair in power construction, railway and highway construction, bridges, ships and other fields. The feeding transmission mechanism is an indispensable part of the pipe bending machine. With the rapid development of science and technology, the feeding transmission mechanism of the pipe bending machine has also been improved.

[0003] Existing pipe bending machines require feeding during operation, but the positioning of the steel pipe during feeding is not ideal, causing one end of the pipe bending machine to tilt during bending, which affects the bending effect. Therefore, a pipe bending mechanism for pipe bending machines is needed to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a pipe bending mechanism for use in a pipe bending machine, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A pipe bending mechanism for use in a pipe bending machine includes a worktable, a support frame is provided on the top of the worktable, a positioning hydraulic cylinder is provided on the top of the support frame, a clamping hydraulic cylinder is provided on the side of the support frame, a pipe bending assembly is provided on an adjacent side of the support frame, and a positioning component is provided on the top side of the worktable.

[0007] The positioning component includes a drive motor, a bidirectional lead screw on one side of the drive motor, a sliding block on the outside of the bidirectional lead screw, a mounting frame on the top of the sliding block, a groove on the side of the mounting frame, a drive component on the top of the mounting frame, a transmission roller inside the groove, and a T-shaped limiting slide rail on the bottom of the mounting frame.

[0008] Preferably, a mounting groove is provided on one side of the top of the workbench, and a bidirectional lead screw is installed inside the mounting groove via a bearing. One end of the bidirectional lead screw passes through the mounting groove. A drive motor is installed on the side of the workbench via bolts, and the drive motor is correspondingly arranged with the mounting groove. The output end of the drive motor is connected to the bidirectional lead screw via a transmission.

[0009] Preferably, a sliding block is sleeved on the outer wall of the bidirectional lead screw, and there are two sliding blocks, which are symmetrically distributed at both ends of the bidirectional lead screw. The sliding blocks are slidably connected inside the mounting groove, and the top of the sliding block is horizontally set with the top of the worktable. The top of the sliding block is bolted to a mounting frame.

[0010] Preferably, a drive component is bolted to the top of the mounting frame, and a groove is provided in the middle of the side of the mounting frame. A transmission roller is mounted inside the groove via a bearing. There are multiple transmission rollers, which are evenly distributed inside the groove. The drive component is connected to the transmission rollers for transmission. There are two mounting frames, which are symmetrically distributed on the top two sides of the worktable, and the transmission rollers on one side of the two mounting frames are arranged opposite each other.

[0011] Preferably, the bottom of the mounting frame is fixedly connected with a T-shaped limiting slide rail, and there are two T-shaped limiting slide rails, which are symmetrically distributed on both sides of the bottom of the mounting frame. The bottom of the mounting frame is in contact with the top of the workbench. The top of the workbench is provided with a limiting slide groove, and there are two limiting slide grooves, which are symmetrically distributed on both sides of the mounting groove. The limiting slide grooves are arranged adjacent to the mounting grooves, and the T-shaped limiting slide rails are slidably connected inside the limiting slide grooves.

[0012] Preferably, the support frame is bolted to the top center of the workbench, and a positioning hydraulic cylinder is bolted to the top of the support frame. The positioning hydraulic cylinder is located between the two mounting frames. Clamping hydraulic cylinders are bolted to the sides of the support frame. There are two clamping hydraulic cylinders, which are symmetrically distributed on both sides of the support frame. The clamping hydraulic cylinders are arranged correspondingly to the positioning hydraulic cylinders.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, a positioning component is used to position the steel pipe to be bent. A drive motor drives a bidirectional lead screw to rotate, causing two sliding blocks to move the mounting frame and the transmission roller in opposite directions. This allows the mounting frame and the transmission roller to position and clamp the steel pipe, preventing one end of the pipe from tilting during bending and affecting the bending angle. Furthermore, a drive component drives the transmission roller to rotate, with both sides rotating in the same direction, thus enabling the feeding of the steel pipe and improving the ease of use of the device. Attached Figure Description

[0015] Figure 1 This is a first-person perspective perspective view of the entire device of this utility model;

[0016] Figure 2 This is a second-view perspective perspective view of the entire device of this utility model;

[0017] Figure 3This is a schematic diagram of the positioning component of this utility model;

[0018] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Workbench; 2. Support frame; 3. Positioning hydraulic cylinder; 4. Clamping hydraulic cylinder; 5. Pipe bending assembly; 6. Positioning component; 7. Mounting groove; 8. Drive motor; 9. Two-way lead screw; 10. Sliding block; 11. Mounting frame; 12. Drive component; 13. Groove; 14. Transfer roller; 15. T-shaped limit slide rail; 16. Limiting slide groove. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a pipe bending mechanism applied to a pipe bending machine includes a worktable 1, a support frame 2 is provided on the top of the worktable 1, and a positioning hydraulic cylinder 3 is provided on the top of the support frame 2. A clamping hydraulic cylinder 4 is provided on the side of the support frame 2. A pipe bending assembly 5 is provided on an adjacent side of the support frame 2. A positioning component 6 is provided on one side of the top of the worktable 1. The support frame 2 is bolted to the middle of the top of the worktable 1, and the positioning hydraulic cylinder 3 is bolted to the top of the support frame 2. The positioning hydraulic cylinder 3 is located in the middle of two mounting frames 11. The clamping hydraulic cylinder 4 is bolted to the side of the support frame 2. There are two clamping hydraulic cylinders 4, which are symmetrically distributed on both sides of the support frame 2. The clamping hydraulic cylinder 4 and the positioning hydraulic cylinder 3 are correspondingly arranged.

[0022] The positioning component 6 includes a drive motor 8, a bidirectional lead screw 9 on one side of the drive motor 8, a sliding block 10 on the outside of the bidirectional lead screw 9, a mounting frame 11 on the top of the sliding block 10, a groove 13 on the side of the mounting frame 11, a drive component 12 on the top of the mounting frame 11, a transmission roller 14 inside the groove 13, a T-shaped limiting slide rail 15 at the bottom of the mounting frame 11, and a mounting groove 7 on one side of the top of the worktable 1, with the bidirectional lead screw 9 mounted inside the mounting groove 7 via bearings. A mounting groove 7 is passed through one end of the lead screw 9. A drive motor 8 is installed on the side of the worktable 1 by bolts. The drive motor 8 is correspondingly set with the mounting groove 7. The output end of the drive motor 8 is connected to the bidirectional lead screw 9. A sliding block 10 is sleeved on the outer wall of the bidirectional lead screw 9. There are two sliding blocks 10, which are symmetrically distributed at both ends of the bidirectional lead screw 9. The sliding blocks 10 are slidably connected inside the mounting groove 7. The top of the sliding block 10 is horizontal with the top of the worktable 1. A mounting frame 11 is installed on the top of the sliding block 10 by bolts.

[0023] A drive component 12 is bolted to the top of the mounting frame 11. A groove 13 is formed in the middle of the side of the mounting frame 11. A transmission roller 14 is mounted inside the groove 13 via bearings. Multiple transmission rollers 14 are evenly distributed inside the groove 13. The drive component 12 is connected to the transmission roller 14 for transmission. There are two mounting frames 11, symmetrically distributed on both sides of the top of the worktable 1. The transmission rollers 14 on one side of the two mounting frames 11 are arranged opposite each other. A T-shaped limiting slide rail 15 is fixedly connected to the bottom of the mounting frame 11. There are two T-shaped limiting slide rails 15, symmetrically distributed on both sides of the bottom of the mounting frame 11. The bottom of the mounting frame 11 contacts the top of the worktable 1. A limiting slide groove 16 is formed on the top of the worktable 1. Two symmetrically distributed on both sides of the mounting groove 7 are provided. The limiting slide groove 16 is adjacent to the mounting groove 7. The T-shaped limiting slide rail 15 is slidably connected inside the limiting slide groove 16. The positioning component 6 is used to position the steel pipe to be bent. The drive motor 8 drives the bidirectional lead screw 9 to rotate, causing the two sliding blocks 10 to move the mounting frame 11 and the transmission roller 14 in opposite directions. This allows the mounting frame 11 and the transmission roller 14 to position and clamp the steel pipe, preventing one end of the steel pipe from tilting during bending and affecting the bending angle. The drive component 12 drives the transmission roller 14 to rotate, with both sides of the transmission roller 14 rotating in the same direction, thereby feeding the steel pipe and improving the ease of use of the device.

[0024] It should be noted that this utility model is a pipe bending mechanism applied to a pipe bending machine. In use, the steel pipe is placed between two mounting frames 11 and the transmission roller 14. The drive motor 8 drives the bidirectional lead screw 9 to rotate, causing the two sliding blocks 10 to synchronously drive the mounting frames 11 and the transmission roller 14 to move in opposite directions, so that the mounting frames 11 drive the transmission roller 14 to contact the steel pipe. Then, the drive component 12 drives the transmission roller 14 to rotate in the direction of the support frame 2, so that the two transmission rollers 14 on both sides can feed the steel pipe, allowing the steel pipe to pass through the middle of the support frame 2. The positioning hydraulic cylinder 3 and the clamping hydraulic cylinder 4 operate to achieve positioning and clamping of the steel pipe. Driven by the set pipe bending group 5, the pipe bending work is completed. At the same time, during pipe bending, the drive motor 8 drives the bidirectional lead screw 9 to rotate, causing the sliding blocks 10 to drive the mounting frames 11 and the transmission roller 14 to clamp one end of the steel pipe, preventing the end of the steel pipe from shifting during pipe bending and affecting the bending effect.

[0025] 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe bending mechanism for use in a pipe bending machine, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a support frame (2), and the top of the support frame (2) is provided with a positioning hydraulic cylinder (3). The side of the support frame (2) is provided with a clamping hydraulic cylinder (4). The adjacent side of the support frame (2) is provided with a pipe bending assembly (5). The top side of the workbench (1) is provided with a positioning component (6). The positioning component (6) includes a drive motor (8), a bidirectional lead screw (9) is provided on one side of the drive motor (8), and a sliding block (10) is provided on the outside of the bidirectional lead screw (9). A mounting frame (11) is provided on the top of the sliding block (10), and a groove (13) is provided on the side of the mounting frame (11). A drive component (12) is provided on the top of the mounting frame (11), and a transmission roller (14) is provided inside the groove (13). A T-shaped limiting slide rail (15) is provided at the bottom of the mounting frame (11).

2. The pipe bending mechanism applied to a pipe bending machine according to claim 1, characterized in that: The top side of the workbench (1) is provided with an installation groove (7), and a double-acting lead screw (9) is installed inside the installation groove (7) through a bearing. One end of the double-acting lead screw (9) passes through the installation groove (7). A drive motor (8) is installed on the side of the workbench (1) by bolts, and the drive motor (8) is correspondingly arranged with the installation groove (7). The output end of the drive motor (8) is connected to the double-acting lead screw (9) for transmission.

3. A pipe bending mechanism applied to a pipe bending machine according to claim 2, characterized in that: The outer wall of the bidirectional lead screw (9) is fitted with a sliding block (10), and there are two sliding blocks (10), which are symmetrically distributed at both ends of the bidirectional lead screw (9). The sliding block (10) is slidably connected inside the mounting groove (7), and the top of the sliding block (10) is horizontally set with the top of the worktable (1). The top of the sliding block (10) is fitted with a mounting frame (11) by bolts.

4. A pipe bending mechanism applied to a pipe bending machine according to claim 3, characterized in that: The top of the mounting frame (11) is bolted with a drive component (12), and a groove (13) is provided in the middle of the side of the mounting frame (11). A transmission roller (14) is installed inside the groove (13) through a bearing. There are multiple transmission rollers (14), which are evenly distributed inside the groove (13). The drive component (12) is connected to the transmission roller (14) in a transmission connection. There are two mounting frames (11), which are symmetrically distributed on the top two sides of the workbench (1), and the transmission rollers (14) on one side of the two mounting frames (11) are arranged opposite to each other.

5. A pipe bending mechanism applied to a pipe bending machine according to claim 3, characterized in that: The bottom of the mounting frame (11) is fixedly connected to a T-shaped limiting slide rail (15), and there are two T-shaped limiting slide rails (15), which are symmetrically distributed on both sides of the bottom of the mounting frame (11). The bottom of the mounting frame (11) is in contact with the top of the workbench (1). The top of the workbench (1) is provided with a limiting slide groove (16), and there are two limiting slide grooves (16), which are symmetrically distributed on both sides of the mounting groove (7). The limiting slide groove (16) is arranged adjacent to the mounting groove (7), and the T-shaped limiting slide rail (15) is slidably connected inside the limiting slide groove (16).

6. A pipe bending mechanism applied to a pipe bending machine according to claim 1, characterized in that: The support frame (2) is bolted to the top center of the workbench (1), and a positioning hydraulic cylinder (3) is bolted to the top of the support frame (2). The positioning hydraulic cylinder (3) is located in the middle of the two mounting frames (11). A clamping hydraulic cylinder (4) is bolted to the side of the support frame (2). There are two clamping hydraulic cylinders (4), which are symmetrically distributed on both sides of the support frame (2). The clamping hydraulic cylinder (4) is correspondingly set to the positioning hydraulic cylinder (3).