Positionable galvanized air duct bending device

By introducing a positioning clamp with a servo bending motor and a synchronous hydraulic cylinder adjustment into the galvanized duct bending device, the problem of inaccurate positioning during galvanized duct bending was solved, achieving efficient and precise galvanized duct forming and improving the forming quality and ventilation performance of the duct.

CN224322136UActive Publication Date: 2026-06-05DONGGUAN YICHEN STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YICHEN STEEL CO LTD
Filing Date
2025-02-15
Publication Date
2026-06-05

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  • Figure CN224322136U_ABST
    Figure CN224322136U_ABST
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Abstract

The utility model relates to the technical field of bending equipment, concretely is galvanized air pipe bending device of positionable, including two groups of processing frame for galvanized air pipe processing and setting fixed base in bottom, install the bending positioning frame of mouth shape between two groups of processing frame, and the first positioning clamping seat and second positioning clamping seat are installed in bending positioning frame inner top and bottom respectively. The utility model discloses install the bending positioning frame of mouth shape between two groups of processing frame, cooperate servo bending motor and drive its rotation, realize the bending operation to galvanized air pipe, and the first positioning clamping seat and second positioning clamping seat are installed in bending positioning frame inner top and bottom respectively, and two groups of first hydraulic cylinder and two groups of second hydraulic cylinder are all synchronous work hydraulic cylinder, make can accurate positioning and firm clamping galvanized air pipe, ensure the accuracy of bending position and bending quality.
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Description

Technical Field

[0001] This utility model relates to the field of bending equipment technology, specifically to a positionable galvanized duct bending device. Background Technology

[0002] Galvanized iron sheet is the main material for galvanized air ducts, and its bending process is a key step in achieving duct formation. However, traditional galvanized iron sheet bending technology has many shortcomings in practical applications, limiting further improvements in duct processing efficiency and quality. Traditional galvanized iron sheet bending technology often lacks precise positioning devices, causing the iron sheet to easily shift during bending, thus affecting the forming accuracy and dimensional stability of the air duct. This not only increases the difficulty of subsequent installation and debugging but may also affect the ventilation performance and sealing of the air duct. Uneven clamping force or insufficient clamping points can easily cause deformation or damage to the iron sheet during bending, affecting the appearance and quality of the final product. Utility Model Content

[0003] The purpose of this invention is to provide a positioning galvanized duct bending device to solve the problem of poor positioning effect when bending existing galvanized steel pipes as mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A positionable galvanized duct bending device includes two sets of processing frames for processing galvanized ducts and a fixed base at the bottom. A U-shaped bending positioning frame is installed between the two sets of processing frames. A first positioning clamp and a second positioning clamp are respectively installed at the top and bottom of the bending positioning frame.

[0006] One set of the processing frames is equipped with a servo bending motor that drives the bending positioning frame to rotate. The two ends of the bending positioning frame are coaxially connected to a rotating shaft. The two sets of processing frames are equipped with bearings for fixing the rotating shaft.

[0007] The top two ends of the bending positioning frame are symmetrically provided with first hydraulic cylinders for adjusting the first positioning clamp, and the bottom two ends of the bending positioning frame are symmetrically provided with second hydraulic cylinders for adjusting the second positioning clamp. Both sets of first hydraulic cylinders and both sets of second hydraulic cylinders are synchronously working hydraulic cylinders.

[0008] Preferably, the servo bending motor is equipped with a connecting seat for connecting to the outer wall of the processing frame.

[0009] Preferably, the top surface of the fixed base has fixing holes at both ends for installation.

[0010] Preferably, the piston rod of the first hydraulic cylinder passes through the bending positioning frame and is connected to the top of the first positioning clamp.

[0011] Preferably, the piston rod of the second hydraulic cylinder passes through the bending positioning frame and is connected to the bottom of the second positioning clamp.

[0012] Preferably, both the first positioning clamp and the second positioning clamp include a clamping steel plate, and a clamping pad is provided on the side of the clamping steel plate that contacts the galvanized sheet.

[0013] Preferably, the surface of the clamping pad is provided with a number of uniformly spaced anti-slip protrusions.

[0014] Compared with existing technologies, the beneficial effects of this utility model are:

[0015] In this positioning galvanized duct bending device, the structure is stable through two sets of processing frames for galvanized duct processing and a fixed base at the bottom. A U-shaped bending positioning frame installed between the two processing frames, driven by a servo bending motor, rotates to achieve the bending operation of the galvanized duct. A first positioning clamp and a second positioning clamp are installed at the top and bottom of the bending positioning frame, respectively. A first hydraulic cylinder is symmetrically arranged at both ends of the top for adjusting the first positioning clamp, and a second hydraulic cylinder is symmetrically arranged at both ends of the bottom for adjusting the second positioning clamp. Both sets of first and second hydraulic cylinders are synchronously operating, enabling precise positioning and firm clamping of the galvanized duct, ensuring the accuracy of the bending position and the bending quality. Bearings embedded in the two processing frames for fixing the rotating shaft ensure smooth rotation of the bending positioning frame.

[0016] In this positioning galvanized duct bending device, both the first positioning clamp and the second positioning clamp include a clamping steel plate. A clamping pad is provided on the side of the clamping steel plate that contacts the galvanized sheet, so that the galvanized duct can be effectively protected and supported during the clamping process, avoiding damage caused by excessive clamping force.

[0017] In this positioning galvanized duct bending device, the surface of the clamping pad is equipped with several uniformly spaced anti-slip protrusions, which increase the friction between the clamping pad and the galvanized duct, effectively preventing the galvanized duct from sliding and shifting during the bending process, and improving the bending accuracy and efficiency. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning clamp of this utility model;

[0022] 10. Processing frame; 11. Servo bending motor; 12. Connecting seat; 13. Bearing;

[0023] 20. Fixed base;

[0024] 30. Bending positioning frame; 31. Rotary shaft;

[0025] 40. First positioning clamp; 41. First hydraulic cylinder;

[0026] 50. Second positioning clamp; 51. Second hydraulic cylinder; 52. Clamping steel plate; 53. Clamping pad; 54. Anti-slip protrusion. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. 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.

[0028] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Positionable galvanized duct bending device, such as Figures 1-3As shown, the device includes two sets of processing frames 10 for galvanized duct processing and a fixed base 20 at the bottom. A U-shaped bending positioning frame 30 is installed between the two sets of processing frames 10. A first positioning clamp 40 and a second positioning clamp 50 are respectively installed at the top and bottom of the bending positioning frame 30. A servo bending motor 11 that drives the bending positioning frame 30 to rotate is installed on one set of processing frames 10. A rotating shaft 31 is coaxially connected at both ends of the bending positioning frame 30. Bearings 13 for fixing the rotating shaft 31 are embedded on both sets of processing frames 10. First hydraulic cylinders 41 for adjusting the first positioning clamp 40 are symmetrically arranged at both ends of the top of the bending positioning frame 30, and second hydraulic cylinders 51 for adjusting the second positioning clamp 50 are symmetrically arranged at both ends of the bottom of the bending positioning frame 30. Both sets of first hydraulic cylinders 41 and both sets of second hydraulic cylinders 51 are synchronously working hydraulic cylinders. The processing frame 10 for galvanized air duct processing and the fixed base 20 at the bottom ensure the stability of the device structure. The U-shaped bending positioning frame 30 installed between the two processing frames 10, in conjunction with the servo bending motor 11, drives its rotation to realize the bending operation of the galvanized air duct. The bending positioning frame 30 has a first positioning clamp 40 and a second positioning clamp 50 installed at the top and bottom respectively, as well as a first hydraulic cylinder 41 symmetrically arranged at both ends of the top for adjusting the first positioning clamp 40 and a second hydraulic cylinder 51 symmetrically arranged at both ends of the bottom for adjusting the second positioning clamp 50. Both sets of first hydraulic cylinders 41 and both sets of second hydraulic cylinders 51 are synchronous working hydraulic cylinders, which can accurately position and firmly clamp the galvanized air duct, ensuring the accuracy of the bending position and the bending quality. The bearings 13 embedded on the two processing frames 10 for fixing the rotating shaft 31 ensure the smooth rotation of the bending positioning frame 30.

[0030] Furthermore, the servo bending motor 11 is equipped with a connecting seat 12 for connecting to the outer wall of the processing frame 10, so that the servo bending motor 11 can be stably installed on the processing frame 10, ensuring the stability of the bending motor during operation, thereby ensuring the stability and reliability of the rotation of the bending positioning frame 30, and providing strong support for the precise bending of the galvanized air duct.

[0031] It is worth noting that the top surface of the fixed base 20 has fixing holes at both ends for installation, which makes it easy to install and fix the entire bending device on the workbench, improving the flexibility and stability of use.

[0032] The piston rod of the first hydraulic cylinder 41 passes through the bending positioning frame 30 and is connected to the top of the first positioning clamp 40, while the piston rod of the second hydraulic cylinder 51 passes through the bending positioning frame 30 and is connected to the bottom of the second positioning clamp 50. This enables synchronous clamping and adjustment of the upper and lower ends of the galvanized air duct, ensuring the accuracy and stability of the bending.

[0033] Specifically, both the first positioning clamp 40 and the second positioning clamp 50 include a clamping steel plate 52. A clamping pad 53 is provided on the side of the clamping steel plate 52 that contacts the galvanized sheet, so that the galvanized air duct can be effectively protected and supported during the clamping process, avoiding damage caused by excessive clamping force.

[0034] In addition, the surface of the clamping pad 53 is equipped with several uniformly spaced anti-slip protrusions 54, which increase the friction between the clamping pad and the galvanized air duct, effectively preventing the galvanized air duct from sliding and shifting during the bending process, and improving the bending accuracy and efficiency.

[0035] The working principle of this galvanized duct bending device:

[0036] First, the fixed base 20 is installed and fixed on the work platform through the fixing holes at both ends of its top surface to ensure the overall stability of the device. Next, the galvanized iron sheet to be processed is placed on the bending positioning frame 30, and the positions of the first positioning clamp 40 and the second positioning clamp 50 are adjusted by the first hydraulic cylinder 41 and the second hydraulic cylinder 51 respectively, so that the clamping steel plate 52 and the clamping pad 53 firmly clamp the galvanized iron sheet, while the anti-slip protrusion 54 further enhances the clamping force and prevents the iron sheet from slipping. Then, the servo bending motor 11 is started, and the bending is connected to the connecting seat 1. 2. The bending positioning frame 30 is driven to rotate, and the rotating shaft 31 rotates smoothly under the support of the bearing 13, so that the galvanized iron sheet is bent at a preset angle. During the bending process, the first hydraulic cylinder 41 and the second hydraulic cylinder 51 work synchronously to ensure that the iron sheet is subjected to uniform force and avoid deformation or displacement. After the bending is completed, the servo bending motor 11 is turned off, the first positioning clamp 40 and the second positioning clamp 50 are released, and the processed galvanized iron sheet can be taken out. The whole process is simple to operate, has high processing accuracy, and can efficiently complete the bending task of galvanized iron sheet.

[0037] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positionable galvanized duct bending device, comprising two processing frames (10) for processing galvanized ducts and a fixed base (20) disposed at the bottom, characterized in that: A U-shaped bending positioning frame (30) is installed between the two sets of processing frames (10). The top and bottom of the bending positioning frame (30) are respectively equipped with a first positioning clamp (40) and a second positioning clamp (50). One of the processing frames (10) is equipped with a servo bending motor (11) that drives the bending positioning frame (30) to rotate. The two ends of the bending positioning frame (30) are coaxially connected to a rotating shaft (31). The two processing frames (10) are equipped with bearings (13) for fixing the rotating shaft (31). The top two ends of the bending positioning frame (30) are symmetrically provided with first hydraulic cylinders (41) for adjusting the first positioning clamp (40), and the bottom two ends of the bending positioning frame (30) are symmetrically provided with second hydraulic cylinders (51) for adjusting the second positioning clamp (50). Both sets of first hydraulic cylinders (41) and both sets of second hydraulic cylinders (51) are synchronous working hydraulic cylinders.

2. The positionable galvanized duct bending device according to claim 1, characterized in that: The servo bending motor (11) is equipped with a connecting seat (12) for connecting to the outer wall of the processing frame (10).

3. The positionable galvanized duct bending device according to claim 1, characterized in that: The top surface of the fixed base (20) has fixing holes at both ends for installation.

4. The positionable galvanized duct bending device according to claim 1, characterized in that: The piston rod of the first hydraulic cylinder (41) passes through the bending positioning frame (30) and is connected to the top of the first positioning clamp (40).

5. The positionable galvanized duct bending device according to claim 1, characterized in that: The piston rod of the second hydraulic cylinder (51) passes through the bending positioning frame (30) and is connected to the bottom of the second positioning clamp (50).

6. The positionable galvanized duct bending device according to claim 1, characterized in that: Both the first positioning clamp (40) and the second positioning clamp (50) include a clamping steel plate (52), and a clamping pad (53) is provided on the side of the clamping steel plate (52) that contacts the galvanized sheet.

7. The positionable galvanized duct bending device according to claim 6, characterized in that: The surface of the clamping pad (53) is provided with a number of uniformly spaced anti-slip protrusions (54).