Large-torque bending structure for pipe bender

Abstract

This utility model relates to the field of pipe bending machine technology, specifically a high-torque bending structure for a pipe bending machine. It includes a support frame disposed on one side of the pipe bending machine, a rotating frame rotatably connected to the outside of the support frame, and a bending structure disposed above the rotating frame. The bending structure includes two bending components symmetrically disposed above the rotating frame. Each bending component includes a fixing plate, and a mold is movably sleeved on the outside of an H-shaped positioning rod. A limiting component is disposed on one side of the bending component, and a supporting component is disposed on one side of the rotating frame. In this utility model, multiple molds are connected and fixed through the interlocking of cross-shaped locking strips and cross-shaped locking slots, allowing the molds to be adjusted at fixed angles. This enables a single mold to adapt to different pipe bending requirements. The limiting effect of the pressure plate facilitates angle adjustment of the mold and improves mold stability. A bracket is provided on one side of the mold to support the pipe, preventing downward displacement of the pipe and reducing angular deviation during bending, thus maintaining stability during pipe bending.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending machine technology, specifically a high-torque bending structure for a pipe bending machine. Background Technology

[0002] In the process of pipe processing, it is usually necessary to bend the pipe. Currently, pipe bending machines are commonly used for pipe bending. In the machinery manufacturing industry, pipe bending machines are widely used to bend various pipes to make them have the shape required by the design or to make the pipes connect smoothly. During the bending process, the feeding structure sends the pipe into the bending structure for bending operation.

[0003] The existing pipe bending machine bending structure usually requires the mold to be disassembled and replaced with another mold when installing and adjusting the mold. This requires preparing a lot of molds, which is inconvenient. Moreover, when the pipe is long, the bending part of the pipe will shift downward due to its own weight, so that the pipe is not on the same plane when bending. This can easily lead to deviations in the bending angle of the pipe and poor stability when bending the pipe. Utility Model Content

[0004] The purpose of this invention is to provide a high-torque bending structure for a pipe bending machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-torque bending structure for a pipe bending machine includes a support frame disposed on one side of the pipe bending machine, a rotating frame rotatably connected to the outside of the support frame, a primary motor capable of driving the rotating frame to rotate disposed inside the support frame, and a bending structure disposed above the rotating frame. The bending structure includes:

[0007] Two bending components are symmetrically arranged above the rotating frame. Each bending component includes a fixed plate. An H-shaped positioning rod is fixedly installed on one side surface of the fixed plate. A mold is movably sleeved on the outside of the H-shaped positioning rod. A pressure plate is slidably connected to the upper end of the outside of the H-shaped positioning rod.

[0008] A limiting component is located on one side of the bending component;

[0009] The support assembly is located on one side of the rotating frame.

[0010] Furthermore, a slider is slidably connected to the upper surface of the rotating frame, and a hydraulic cylinder capable of moving the slider is fixedly installed on one side of the rotating frame. The two fixed plates are respectively fixedly connected to the slider and the rotating frame.

[0011] Furthermore, the upper surface of the fixed plate and the lower surface of the mold are both provided with cross-shaped slots, and cross-shaped retaining strips are fixedly installed on the pressure plate and the lower surface of the mold. The cross-shaped retaining strips are movably inserted into the cross-shaped slots at the corresponding positions.

[0012] Furthermore, the limiting component includes:

[0013] L-shaped reinforcing plate, fixedly installed on the outer surface of the fixing plate;

[0014] The collar is slidably connected to the outside of the L-shaped reinforcing plate.

[0015] Preferably, a fastening bolt is screwed onto one side surface of the collar, and the fastening bolt passes through the collar and is movably fitted with the L-shaped reinforcing plate, and one end of the collar is fixedly connected to the pressure plate.

[0016] Furthermore, the supporting component includes:

[0017] Hydraulic cylinder No. 2 is fixedly mounted on one side of the rotating frame via a bracket.

[0018] Hydraulic cylinder No. 3 is fixedly installed at the output end of hydraulic cylinder No. 2 by a bracket;

[0019] A mounting bracket is fixedly installed at the output end of hydraulic cylinder No. 3.

[0020] The bracket is rotatably connected to the upper end of the fixed frame via bearings.

[0021] Preferably, a second motor capable of driving the bracket to rotate is fixedly installed inside the fixed frame, a sliding sleeve is fixedly installed on one side surface of the rotating frame, a sliding rod is slidably connected inside the sliding sleeve, and one end of the sliding rod is fixedly connected to a third hydraulic cylinder.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. By lifting the pressure plate upwards and rotating the mold, the grooves on different sides of the mold come into contact with the pipe fitting. Through the snapping of the cross-shaped retaining strip and cross-shaped retaining groove, multiple molds are connected and fixed, and the mold can be adjusted to a fixed angle so that a single mold can adapt to different pipe bending requirements.

[0024] 2. By tightening the fastening bolts, the collar and pressure plate are fixed, making the position of the pressure plate easy to adjust. At the same time, the pressure plate limits the position of the H-shaped positioning rod from the top, increasing the firmness of the H-shaped positioning rod and preventing the mold from shifting due to the pressure of the pipe fittings, thus improving the stability of the mold.

[0025] 3. The second hydraulic cylinder extends and retracts to adjust the horizontal position of the bracket. The third hydraulic cylinder extends and retracts to adjust the height of the bracket, enabling it to support pipes of different heights. The second motor rotates, driving the bracket to rotate and adjust its angle, enabling it to support the bent pipes. By setting a bracket on one side of the mold to support the pipes, the pipes are prevented from shifting downwards, reducing the angle deviation during bending and maintaining the stability of the pipes during bending. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the support component and bending component structure in this utility model;

[0028] Figure 3 This is a schematic diagram of the disassembled structure of the bending component and the limiting component in this utility model;

[0029] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the bending component and the limiting component in this utility model;

[0030] Figure 5 This is a schematic diagram of the overall structure of the support component in this utility model.

[0031] In the diagram: 1. Pipe bending machine; 101. Support frame; 102. Rotating frame; 103. Motor No. 1; 104. Hydraulic cylinder No. 1; 105. Slider; 2. Bending assembly; 201. Fixing plate; 202. H-shaped positioning rod; 203. Pressure plate; 204. Mold; 205. Cross slot; 206. Cross clip; 3. Limiting assembly; 301. L-shaped reinforcing plate; 302. Collar; 303. Fastening bolt; 4. Support assembly; 401. Hydraulic cylinder No. 2; 402. Hydraulic cylinder No. 3; 403. Sliding sleeve; 404. Sliding rod; 405. Fixing frame; 406. Motor No. 2; 407. Bracket. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-5In this embodiment of the utility model, a high-torque bending structure for a pipe bending machine includes a support frame 101 disposed on one side of the pipe bending machine 1. A rotating frame 102 is rotatably connected to the outside of the support frame 101. A primary motor 103 is disposed inside the support frame 101, capable of driving the rotating frame 102 to rotate. The primary motor 103 drives the rotating frame 102 to rotate, causing two bending components 2 to clamp the pipe and bend it. A slider 105 is slidably connected to the upper surface of the rotating frame 102. A primary hydraulic cylinder 104 is fixedly installed on one side of the rotating frame 102, capable of moving the slider 105. The primary hydraulic cylinder 104 extends and retracts, adjusting the position of the slider 105, causing the upper bending component 2 to separate from and clamp the pipe. The fixed plate 201 is fixedly connected to the slider 105 and the rotating frame 102 respectively. A bending structure is provided above the rotating frame 102. The bending structure includes two bending components 2, which are symmetrically arranged above the rotating frame 102. The bending component 2 includes the fixed plate 201. An H-shaped positioning rod 202 is fixedly installed on one side surface of the fixed plate 201. A mold 204 is movably sleeved on the outside of the H-shaped positioning rod 202. The mold 204 has slots of different shapes on different surfaces. By fitting with the pipe through different slots, the pipe is bent according to different requirements. A pressure plate 203 is slidably connected to the upper end of the outside of the H-shaped positioning rod 202. A limiting component 3 is set on one side of the bending component 2, and a support component 4 is set on one side of the rotating frame 102.

[0034] Specifically, after the two bending components 2 clamp the pipe, the pipe is bent at different angles under the drive of the first motor 103. At the same time, the different opening and rubbing of different surfaces of the mold 204 adapts to the different bending methods of the pipe. The limiting component 3 fixes the mold 204, and the supporting component 4 supports the pipe at the bent end.

[0035] Example 1

[0036] like Figure 3 and Figure 4 As shown, in this embodiment, the upper surface of the fixing plate 201 and the lower surface of the mold 204 are both provided with cross slots 205, and the lower surface of the pressure plate 203 and the mold 204 are both fixedly installed with cross strips 206, which are movably inserted into the cross slots 205 at the corresponding positions.

[0037] In this embodiment, the pressure plate 203 limits the mold 204 from above. Through the insertion of cross-shaped retaining strips 206 and cross-shaped retaining grooves 205 at different positions, the pressure plate 203, mold 204, and H-shaped positioning rod 202 form a stable structure, fixing the mold 204. When different bending methods are required for the pipe fitting, the pressure plate 203 is pulled upward, and the mold 204 is rotated so that the slots on different sides of the mold 204 contact the pipe fitting. Thus, through the engagement of the cross-shaped retaining strips 206 and cross-shaped retaining grooves 205, multiple molds 204 are connected and fixed, and the fixed angle of the mold 204 can be adjusted so that a single mold 204 can adapt to different pipe bending requirements.

[0038] like Figure 2-4 As shown, in this embodiment, the limiting component 3 includes: an L-shaped reinforcing plate 301 fixedly installed on the outer surface of the fixing plate 201, and a collar 302 slidably connected to the outer side of the L-shaped reinforcing plate 301; a fastening bolt 303 is screwed onto one side surface of the collar 302, and the fastening bolt 303 passes through the collar 302 and is movably fitted with the L-shaped reinforcing plate 301, and one end of the collar 302 is fixedly connected to the pressure plate 203.

[0039] In practice, by tightening the fastening bolt 303, it is pressed against the L-shaped reinforcing plate 301, fixing the collar 302 and the pressure plate 203. This makes the position of the pressure plate 203 easy to adjust. At the same time, the pressure plate 203 limits the H-shaped positioning rod 202 from the upper end, increasing the firmness of the H-shaped positioning rod 202 and preventing the mold 204 from shifting due to the compression of the pipe fitting, thus improving the stability of the mold 204.

[0040] Example 2

[0041] Based on Example 1, in order to compensate for the problem that the pipe will shift downwards due to its own weight, resulting in deviations in the bending angle of the pipe and poor stability.

[0042] like Figure 2 and Figure 5 As shown, in this embodiment, the support component 4 includes: a second hydraulic cylinder 401 fixedly mounted on one side surface of the rotating frame 102 via a bracket; a third hydraulic cylinder 402 fixedly mounted on the output end of the second hydraulic cylinder 401 via a bracket; a fixed frame 405 fixedly mounted on the output end of the third hydraulic cylinder 402; and a bracket 407 rotatably connected to the upper end of the fixed frame 405 via a bearing. A second motor 406 capable of driving the bracket 407 to rotate is fixedly mounted inside the fixed frame 405. A sliding sleeve 403 is fixedly mounted on one side surface of the rotating frame 102, and a sliding rod 404 is slidably connected inside the sliding sleeve 403. One end of the sliding rod 404 is fixedly connected to the third hydraulic cylinder 402.

[0043] In practice, hydraulic cylinder 401 extends and retracts to adjust the horizontal position of bracket 407, hydraulic cylinder 402 extends and retracts to adjust the height of bracket 407 so that it can support pipes of different heights, and motor 406 operates to drive bracket 407 to rotate and adjust its angle so that it can support the bent pipe. Thus, by setting bracket 407 on one side of mold 204 to support the pipe, the pipe is prevented from shifting downward, the angle deviation of the pipe during bending is reduced, and the stability of the pipe during bending is maintained.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-torque bending structure for a pipe bending machine, comprising a support frame (101) disposed on one side of the pipe bending machine (1), a rotating frame (102) rotatably connected to the outside of the support frame (101), and a primary motor (103) capable of driving the rotating frame (102) to rotate inside the support frame (101), characterized in that, A bending structure is provided above the rotating frame (102), and the bending structure includes: Two bending components (2) are symmetrically arranged above the rotating frame (102). The bending component (2) includes a fixing plate (201). An H-shaped positioning rod (202) is fixedly installed on one side surface of the fixing plate (201). A mold (204) is movably sleeved on the outside of the H-shaped positioning rod (202). A pressure plate (203) is slidably connected to the upper end of the outside of the H-shaped positioning rod (202). A limiting component (3) is provided on one side of the bending component (2); The support component (4) is located on one side of the rotating frame (102).

2. The high-torque bending structure for a pipe bending machine according to claim 1, characterized in that, A slider (105) is slidably connected to the upper surface of the rotating frame (102). A hydraulic cylinder (104) capable of moving the slider (105) is fixedly installed on one side of the rotating frame (102). The two fixed plates (201) are fixedly connected to the slider (105) and the rotating frame (102) respectively.

3. The high-torque bending structure for a pipe bending machine according to claim 1, characterized in that, The upper surface of the fixing plate (201) and the lower surface of the mold (204) are provided with cross slots (205), and the lower surfaces of the pressure plate (203) and the mold (204) are fixedly installed with cross strips (206), which are movably inserted into the cross slots (205) at the corresponding positions.

4. The high-torque bending structure for a pipe bending machine according to claim 1, characterized in that, The limiting component (3) includes: L-shaped reinforcing plate (301) is fixedly installed on the outer surface of the fixing plate (201); The collar (302) is slidably connected to the outside of the L-shaped reinforcing plate (301).

5. The high-torque bending structure for a pipe bending machine according to claim 4, characterized in that, A fastening bolt (303) is screwed onto one side of the collar (302), and the fastening bolt (303) passes through the collar (302) and is movably fitted with the L-shaped reinforcing plate (301). One end of the collar (302) is fixedly connected to the pressure plate (203).

6. The high-torque bending structure for a pipe bending machine according to claim 1, characterized in that, The support component (4) includes: The second hydraulic cylinder (401) is fixedly installed on one side surface of the rotating frame (102) by a bracket; Hydraulic cylinder No. 3 (402) is fixedly installed at the output end of hydraulic cylinder No. 2 (401) by a bracket; The mounting bracket (405) is fixedly installed at the output end of the third hydraulic cylinder (402); The bracket (407) is rotatably connected to the upper end of the fixed frame (405) via a bearing.

7. The high-torque bending structure for a pipe bending machine according to claim 6, characterized in that, The fixed frame (405) is equipped with a second motor (406) that can drive the bracket (407) to rotate. A sliding sleeve (403) is fixedly installed on one side surface of the rotating frame (102). A sliding rod (404) is slidably connected inside the sliding sleeve (403). One end of the sliding rod (404) is fixedly connected to the third hydraulic cylinder (402).

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