Continuous bending device for metal pipe

By designing a continuous bending device for metal pipes with a combination of limiting components, the problem that simple bending machines cannot adapt to different pipe diameters during continuous bending is solved, realizing continuous bending of metal pipes. It is suitable for small-scale projects and complex shape processing in on-site construction.

CN224026191UActive Publication Date: 2026-03-24DONGGUAN DARLING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing simple bending machines cannot achieve continuous bending in the continuous bending process of metal pipes, especially when making serpentine, U-shaped, J-shaped or Z-shaped antennas, and cannot meet the requirements of different pipe diameters.

Method used

A continuous bending device for metal pipes was designed. By setting a combination of a first limiting member, a second limiting member, and a third limiting member, the metal pipe is allowed to be bent between the limiting member and the fixed shaft. The position of the second limiting member is adjustable to accommodate different pipe diameters. The thickness of the third limiting member plus the thickness of the limiting post is less than the shaft diameter of the fixed shaft, ensuring that the gap between the pipes after bending can accommodate the limiting member, thus realizing continuous bending.

Benefits of technology

It enables continuous bending of metal pipes of different diameters, improving operational flexibility and efficiency. It is suitable for small-scale projects or on-site construction and meets the processing needs of complex-shaped metal pipes such as serpentine, U-shaped, J-shaped or Z-shaped antennas.

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Abstract

The utility model provides a metal pipe continuous bending device which comprises a workbench, a fixed shaft, a rotating piece, a first limiting piece, a second limiting piece and a third limiting piece, the fixed shaft is arranged in the middle of the workbench, the rotating piece is arranged on the fixed shaft in a sleeved mode and rotates horizontally, the first limiting piece is arranged on one side of the fixed shaft, and the second limiting piece is arranged on the other side of the fixed shaft. The second limiting piece is arranged on the rotating piece and the position of the second limiting piece can be adjusted, a limiting column is arranged above the second limiting piece, the third limiting piece is inserted between the limiting column and the fixing shaft, and the metal pipe is sequentially clamped between the third limiting piece and the fixing shaft and on the first limiting piece; the sum of the thickness of the third limiting piece and the thickness of the limiting column is smaller than the shaft diameter of the fixed shaft, and the rotating piece is rotated to bend the metal pipe in the rotating direction of the limiting column; according to the metal pipe bending device, metal pipes with different pipe diameters can be bent, the third limiting piece and the limiting column can be contained in the gap between every two adjacent bent metal pipes, and then continuous bending can be smoothly conducted.
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Description

TECHNICAL FIELD

[0001] The utility model relates to metal material processing equipment technical field especially relates to a metal pipe continuous bending device. BACKGROUND

[0002] In the metal processing field, especially for the bending of metal pipes to complete the production of metal parts, such as antennas, there are different shapes, such as snake-shaped antennas, U-shaped antennas, J-shaped antennas or Z-shaped antennas, which all need to bend the metal pipes for producing antennas. The bending equipment includes a simple bending machine driven by manpower and a hydraulic automatic bending machine. The hydraulic bending machine is large in size, not suitable for moving and carrying, and complicated to operate, which is not conducive to the use in small engineering quantities or on-site construction. The simple bending machine has a relatively wide application in the above-mentioned occasions. The current simple bending machine cannot realize continuous bending in the continuous bending process when bending in a snake shape. SUMMARY

[0003] The main purpose of the utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art and provide a metal pipe continuous bending device.

[0004] A metal pipe continuous bending device, comprising a workbench, a fixed shaft, a rotating part, a first limiting part, a second limiting part and a third limiting part, the fixed shaft is installed in the middle part of the workbench, one end of the rotating part is sleeved on the fixed shaft and rotates horizontally around the fixed shaft, the first limiting part is arranged on one side of the fixed shaft, the second limiting part is installed on the rotating part, and the position of the second limiting part on the rotating part can be adjusted, a limiting column is arranged above the second limiting part, and the third limiting part is inserted between the limiting column and the fixed shaft, the metal pipe is sequentially clamped between the third limiting part and the fixed shaft and on the first limiting part, the thickness of the third limiting part plus the thickness of the limiting column is less than the shaft diameter of the fixed shaft, and the rotating part is rotated to bend the metal pipe along the rotating direction of the limiting column.

[0005] The utility model discloses a first limiting part, a second limiting part and a third limiting part combination can meet the bending of metal pipes of different pipe diameter sizes. Since the diameter of the bent metal pipe is not greater than the shaft diameter of the fixed shaft, the thickness of the third limiting part plus the thickness of the limiting column is less than the shaft diameter of the fixed shaft, the gap between the adjacent metal pipes after bending can accommodate the third limiting part and the limiting column, and continuous bending can be smoothly carried out. The position of the second limiting part on the rotating part can be adjusted, thereby adjusting the distance between the limiting column and the fixed shaft and meeting the metal pipes of different pipe diameter sizes.

[0006] In the implementation of one of the embodiments, the first limiting piece is fixed on the workbench, and a fixing hole is formed on the first limiting piece, and the metal pipe is positioned by passing through the fixing hole of the first limiting piece.

[0007] In the implementation of one of the embodiments, the first limiting piece is fixed on the workbench, and a fixing hole is formed on the first limiting piece, and the metal pipe is positioned by passing through the fixing hole of the first limiting piece.

[0008] In the implementation of one of the embodiments, the first limiting piece is fixed on the workbench, and a fixing hole is formed on the first limiting piece, and the metal pipe is positioned by passing through the fixing hole of the first limiting piece.

[0009] In the implementation of one of the embodiments, the third limiting piece is a cuboid, and an insertion slot is arranged on the inner side of the third limiting piece, and the metal pipe is positioned by passing through the space enclosed by the insertion slot and the annular groove.

[0010] In the implementation of one of the embodiments, the workbench is provided with a first guide slot in the shape of an arc, the first guide slot is centered on the fixing shaft, the lower end of the first limiting piece is inserted into the first guide slot, and the first guide slot is provided with a rotation scale line.

[0011] In the implementation of one of the embodiments, the workbench is provided with a second guide slot in the shape of an arc, and the second guide slot is provided with a rotation scale line.

[0012] In the implementation of one of the embodiments, the thickness of the third limiting piece is different.

[0013] In the implementation of one of the embodiments, a plurality of different positioning adjustment grooves are formed on the rotating piece, and the second limiting piece can be inserted into different positioning adjustment grooves through the positioning piece.

[0014] The metal pipe continuous bending device has the beneficial effects that: by setting the first limiting piece, the second limiting piece and the third limiting piece, metal pipes of different pipe diameters can be bent, since the diameter of the bent metal pipe is not greater than the shaft diameter of the fixing shaft, the thickness of the third limiting piece plus the thickness of the limiting column is less than the shaft diameter of the fixing shaft, the gap between the adjacent metal pipes after bending can accommodate the third limiting piece and the limiting column, and continuous bending can be smoothly performed; the position of the second limiting piece on the rotating piece can be adjusted, thereby adjusting the distance between the limiting column and the fixing shaft, and metal pipes of different pipe diameters can be satisfied. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a structural schematic diagram of the metal pipe continuous bending device according to an embodiment of the present application;

[0016] Figure 2 Figure 2 is a structural schematic diagram of the metal pipe continuous bending device according to another embodiment of the present application; Figure 1 Figure 3 is a structural schematic diagram of the metal pipe continuous bending device according to a use state of the present application;

[0017] Figure 3 Figure 4 is a structural schematic diagram of the metal pipe continuous bending device according to another embodiment of the present application;

[0018] Figure 4 Figure 5 is a structural schematic diagram of the metal pipe continuous bending device according to another embodiment of the present application;

[0019] Figure 5 Figure 6 is a structural schematic diagram of the metal pipe continuous bending device according to another embodiment of the present application;

[0020] Figure 6 Figure 7 is an exploded structural schematic diagram of the metal pipe continuous bending device according to the present application; Figure 5 Figure 8 is a structural schematic diagram of the metal pipe continuous bending device according to a use state of the present application.

[0021] Figure 7 Figure 9 is a structural schematic diagram of the metal pipe continuous bending device according to another embodiment of the present application. Figure 4 Figure 10 is a structural schematic diagram of the metal pipe continuous bending device according to a use state of the present application. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as limiting the present application.

[0023] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0025] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0027] The utility model discloses a metal pipe continuous bending device, including work table, fixed shaft, rotating part, first limit piece, second limit piece and third limit piece, the fixed shaft is installed in the middle part of work table, the one end of rotating part is covered fixed shaft and carries out horizontal rotation with fixed shaft as center, first limit piece is established in one side of fixed shaft, second limit piece is installed on rotating part, and the position of second limit piece on rotating part can be adjusted, the upper portion of second limit piece is equipped with limit post, third limit piece is inserted between limit post and fixed shaft, and metal pipe is connected in turn between third limit piece and fixed shaft and first limit piece, the thickness of third limit piece and the thickness of limit post add up to less than the axle diameter of fixed shaft, and rotating rotating part makes metal pipe bend along the direction of rotating of limit post.

[0028] The utility model discloses a first limiting piece, second limiting piece and third limiting piece combination can satisfy the metal pipe of different pipe diameter size and carry out bending, because the diameter of metal pipe bending is not greater than the axle diameter of fixed axle, the thickness of third limiting piece and the thickness of limiting column are less than the axle diameter of fixed axle, can make the clearance between adjacent metal pipe after bending can accommodate third limiting piece and limiting column, and then continuously bend smoothly, the position of second limiting piece at rotating part can be adjusted, and then realize the distance adjustment between limiting column and fixed axle, satisfy the metal pipe of different pipe diameter size.

[0029] Embodiment one

[0030] Please refer to Figure 1 and Figure 2 The utility model provides a metal pipe continuous bending device 100 to be used for the continuous serpentine bending of metal pipe 200, and the metal pipe continuous bending device 100 includes workbench 1, fixed axle 2, rotating part 3, first limiting piece 4, second limiting piece 5 and third limiting piece 6, fixed axle 2 is installed in the middle part of workbench 1, one end of rotating part 3 is sleeved on fixed axle 2 and rotates horizontally with fixed axle 2 as the center, first limiting piece 4 is arranged at one side of fixed axle 2, second limiting piece 5 is installed on rotating part 3, and the position of second limiting piece 5 at rotating part 3 can be adjusted, limiting column 7 is arranged above second limiting piece 5, and third limiting piece 6 is inserted between limiting column 7 and fixed axle 2. When continuously serpentine bending metal pipe 200, metal pipe 200 is clamped between third limiting piece 6 and fixed axle 2 and on first limiting piece 4 in sequence, that is, rotating rotating part 3 with first limiting piece 4 as the base point and fixed axle 2 as the center point, limiting column 7 and third limiting piece 6 move along metal pipe 200 in the arc shape, so that metal pipe 200 is bent along the direction of rotating with fixed axle 2 as the center.

[0031] More specifically, please refer to Figure 1 First limiting piece 4 is fixed on workbench 1, and fixed hole 41 is formed in first limiting piece 4, and metal pipe 200 is positioned through fixed hole 41 of first limiting piece 4. It can be understood that the space of fixed hole 41 is slightly larger than the outer diameter of metal pipe 200, and fixed hole 41 is used as the base point of rotating bending.

[0032] More specifically, please refer to Figure 2 To ensure that the bent metal pipe 200 can smoothly proceed to the next bending, that is, the gap between the two parallel metal pipes can accommodate third limiting piece 6 and limiting column 7, that is, the thickness of third limiting piece 6 and the thickness of limiting column 7 need to be less than the axle diameter of fixed axle 2. Preferably, the thickness of third limiting piece 6 is different, which can be suitable for different serpentine metal pipe bending radius.

[0033] Preferably, to ensure the bending of serpentine metal pipe of different size requirements and the feeding during the bending process, please refer to Figure 1 and Figure 2 The end of the rotating member 3 is provided with a rotating handle 31, and a plurality of different positioning adjustment grooves 32 are formed in the rotating member 3. The second limiting member 5 can be inserted into the different positioning adjustment grooves 32 through a positioning member (not shown), so as to adjust the distance between the second limiting member 5 and the fixed shaft 2, realize the distance adjustment between the limiting column 7 on the second limiting member 5 and the fixed shaft 2, and further meet the bending requirements of different sizes.

[0034] Embodiment two

[0035] Please refer to Figure 3 The metal pipe 200 continuous serpentine bending device provided by the utility model has the advantages that the first limiting member 4 is arranged on the fixed shaft 2 and can rotate along the fixed shaft 2, the fixed hole 41 is formed in the first limiting member 4, and the metal pipe 200 is positioned by penetrating through the fixed hole 41 of the first limiting member 4. The rotation of the first limiting member 4 relative to the fixed shaft 2 can provide the efficiency of continuous bending.

[0036] Preferably, the workbench 1 is provided with a first arc-shaped guide groove 11, the first arc-shaped guide groove 11 is centered on the fixed shaft 2, the lower end of the first limiting member 4 is inserted into the first arc-shaped guide groove 11, and the first arc-shaped guide groove 11 is provided with rotating scale lines. The workbench 1 is provided with a second arc-shaped guide groove 12, and the second arc-shaped guide groove 12 is provided with rotating scale lines. The first arc-shaped guide groove 11 and the second arc-shaped guide groove 12 are both provided with rotating scale lines, and the metal pipe 200 can be accurately bent during the bending process. More preferably, at least four supporting columns 13 are arranged below the workbench 1, and the height of the supporting columns 13 can be adjusted.

[0037] Embodiment three

[0038] Please refer to Figures 4 to 7 The metal pipe 200 continuous serpentine bending device provided by the utility model has the advantages that the first limiting member 4 is arranged on the fixed shaft 2 and can rotate along the fixed shaft 2, the fixed hole 41 is formed in the first limiting member 4, and the metal pipe 200 is positioned by penetrating through the fixed hole 41 of the first limiting member 4. The rotation of the first limiting member 4 relative to the fixed shaft 2 can provide the efficiency of continuous bending.

[0039] More specifically, please refer to Figures 2 to 4The third limiting piece 6 is cuboid, and the inner side of the third limiting piece 6 is provided with a slot 61, and the metal pipe 200 passes through the space surrounded by the slot 61 and the annular groove 21. Preferably, the workbench 1 is provided with a first guide slot 11 in the shape of a circular arc, the first guide slot 11 is centered on the fixed shaft 2, the lower end of the first limiting piece 4 is inserted into the first guide slot 11, and the first guide slot 11 is provided with a rotating scale. The workbench 1 is provided with a second guide slot 12 in the shape of a circular arc, and the second guide slot 12 is provided with a rotating scale.

[0040] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0041] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A continuous bending device for metal pipes, characterized in that, The device includes a worktable, a fixed shaft, a rotating component, a first limiting component, a second limiting component, and a third limiting component. The fixed shaft is installed in the middle of the worktable. One end of the rotating component is sleeved on the fixed shaft and rotates horizontally around the fixed shaft. The first limiting component is located on one side of the fixed shaft. The second limiting component is installed on the rotating component, and its position is adjustable. A limiting post is provided above the second limiting component. The third limiting component is inserted between the limiting post and the fixed shaft. A metal tube is sequentially clamped between the third limiting component and the fixed shaft and onto the first limiting component. The thickness of the third limiting component plus the thickness of the limiting post is less than the shaft diameter of the fixed shaft. Rotating the rotating component causes the metal tube to bend along the direction of rotation of the limiting post.

2. The continuous bending device for metal pipes according to claim 1, characterized in that: The first limiting member is fixed on the worktable, and a fixing hole is provided on the first limiting member. The metal tube passes through the fixing hole of the first limiting member for positioning.

3. The continuous bending device for metal pipes according to claim 1, characterized in that: The first limiting member is mounted on the fixed shaft and can rotate along the fixed shaft. The first limiting member has a fixing hole, through which the metal tube is positioned.

4. The continuous bending device for metal pipes according to claim 1, characterized in that: The first limiting member is mounted on the fixed shaft and can rotate along the fixed shaft. The first limiting member has a fixing groove, and the fixed shaft has an annular groove. The metal tube passes through the space enclosed by the fixing groove and the annular groove.

5. The continuous bending device for metal pipes according to claim 4, characterized in that: The third limiting member is rectangular in shape, and a slot is provided on the inner side of the third limiting member. The metal tube passes through the space enclosed by the slot and the annular groove.

6. The continuous bending device for metal tubes according to claim 1, characterized in that: The worktable is provided with an arc-shaped first guide groove, with the fixed shaft as the center. The lower end of the first limiting member is inserted into the first guide groove, and the first guide groove is provided with a rotation scale line.

7. The continuous bending device for metal tubes according to claim 1, characterized in that: The workbench is provided with an arc-shaped second guide groove, and the second guide groove is provided with a rotating scale line.

8. The continuous bending device for metal tubes according to claim 1, characterized in that: The thickness of the third limiting member is different.

9. The continuous bending device for metal tubes according to claim 1, characterized in that: The rotating component has multiple different positioning adjustment slots, and the second limiting component can be inserted into different positioning adjustment slots through the positioning component.