A metal bending device

The combination design of threaded rod and inclined plate enables rapid adjustment of mold angle, and the cooperation of support rod and locking screw enables precise positioning of limit plate. This solves the problem of inconvenient mold angle adjustment in existing devices and improves the efficiency and accuracy of metal bending.

CN224333156UActive Publication Date: 2026-06-09SUZHOU FENGLIAN PRECISION MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU FENGLIAN PRECISION MFG CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing metal bending equipment is cumbersome and time-consuming when changing molds to achieve different bending angles, resulting in low work efficiency and the equipment being unusable during the changeover period.

Method used

The combination of threaded rod and inclined plate enables rapid and flexible adjustment of mold angle; the cooperation of support rod, connecting sleeve and locking screw enables precise height adjustment and fixation of limit plate.

Benefits of technology

The ability to quickly adjust the angle and height of the die improves the efficiency and precision of metal bending, ensures the stability of metal parts during processing, and enhances product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal bending device, including work table, both sides inside work table all are fixedly connected with thread bush, every thread bush inside is connected with thread rod, every thread rod other end all are rotatably connected with connecting block. The utility model in the actual use's process, rotates handle, drives thread rod rotation, because connecting block is connected with thread rod thread, and connecting block will move along thread rod axial movement, when connecting block moves, pushes the inclined plate on positioning rod no.
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Description

Technical Field

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

[0002] Metal bending machines are indispensable equipment in the metal processing field. They mainly consist of a frame, worktable, power system, bending dies, and control system. The frame provides stable support for the overall structure, while the worktable holds the metal material to be processed. The power system, commonly hydraulic or electric, generates powerful force. The bending dies, designed in different shapes according to requirements, are the key components for achieving metal bending. During operation, the operator places the metal material on the worktable, sets parameters such as bending angle and force through the control system, and the power system drives the bending dies to apply pressure to the metal material, precisely bending it into the desired shape. This device is easy to operate, highly precise, and can be widely used in industries such as machinery manufacturing and building decoration, significantly improving metal processing efficiency and quality.

[0003] A search revealed that Chinese patent CN218191837U discloses a metal bending device. The patent describes a technical solution in which the assembly plate and the support plate are detachably connected, and the fixing plate and the mounting plate are detachably connected, through the setting of the mold assembly and bending assembly. This facilitates the replacement of the template and bending plate as needed, so that the template and bending plate are matched with the bending angle, thereby improving the applicability of the bending device.

[0004] While this solution achieves rapid disassembly, it requires changing the matching mold when bending metal parts to different angles. This process is cumbersome, time-consuming, and labor-intensive, and the equipment cannot be used during the replacement period, resulting in a significant reduction in work efficiency. To solve this technical problem, this utility model proposes a metal bending device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] While this solution achieves rapid disassembly, it requires changing the matching mold when bending metal parts to different angles. This process is cumbersome, time-consuming, and labor-intensive, and the equipment cannot be used during the replacement period, resulting in a significant reduction in work efficiency. To solve this technical problem, this utility model proposes a metal bending device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a metal bending device, comprising a workbench, with threaded sleeves fixedly connected to the interior of both sides of the workbench, a threaded rod threadedly connected to the interior of each threaded sleeve, and a connecting block rotatably connected to the other end of each threaded rod. A base is fixedly connected to the top of the workbench, with rotating columns rotatably connected to the interior of both sides of the base. A mold is fixedly connected to the outer wall of each rotating column, and a limit block is fixedly connected to the outer wall of each mold. An inclined plate is provided between the mold and the connecting block, with one end of the inclined plate connected to the connecting block via a positioning rod, and the other end of the inclined plate rotatably connected to the limit block via the positioning rod, which is also rotatably connected to the connecting block.

[0009] Preferably, each of the threaded rods has a handle fixedly connected to its other end, and the workbench has a sliding groove on both sides, with the connecting block slidably connected in the sliding groove.

[0010] Preferably, a pair of positioning rods are fixedly connected inside the groove, and the connecting blocks on both sides are slidably connected to the outer wall of the positioning rods.

[0011] Preferably, a pair of support rods are fixedly connected to both sides of the top of the workbench, a connecting sleeve is slidably connected to the outer wall of each support rod, a locking screw is provided inside each connecting sleeve, and a limit plate is provided on the outside of the connecting sleeve.

[0012] Preferably, a bracket is fixedly connected to the top of the workbench, an electric push rod is fixedly connected to the top of the bracket, and a bending head is fixedly connected to the output end of the electric push rod, with the bending head slidably connected between the molds on both sides.

[0013] Preferably, a pair of limiting rods are fixed to the top of the bending head, and the limiting rods are slidably connected within the bracket.

[0014] (III) Beneficial Effects

[0015] This utility model provides a metal bending device. It has the following beneficial effects:

[0016] (1) Turn the handle to drive the threaded rod to rotate. Since the connecting block is threadedly connected to the threaded rod and is limited by the second positioning rod, the connecting block will move along the axial direction of the threaded rod. When the connecting block moves, it pushes the inclined plate on the first positioning rod. One end of the inclined plate is connected to the mold. The mold is installed in the base through the rotating column. The base is provided with a sliding groove to provide space for the mold to rotate. The inclined plate pushes the mold to rotate around the rotating column, thereby adjusting the included angle between the molds. This device solves the problem that the mold angle adjustment of the existing metal bending equipment is inconvenient and cannot meet the diverse bending needs. The mold angle of traditional equipment is fixed or complicated to adjust, and the efficiency is low. This device achieves rapid and flexible adjustment of the mold angle through the cooperation of various components, which can adapt to different bending requirements and improve the working efficiency and processing accuracy of metal bending.

[0017] (2) The connecting sleeve is fitted onto the support rod and can slide up and down along the support rod. The locking screw passes through the connecting sleeve. When it is necessary to adjust the height of the limiting plate, the locking screw is loosened, and the connecting sleeve can slide freely on the support rod. The connecting sleeve is connected to the limiting plate, and its sliding causes the limiting plate to move up and down synchronously. In this way, the limiting plate is adjusted to a suitable height according to the processing requirements of the metal parts. After adjustment, the locking screw is tightened. The friction between the screw and the support rod is used to firmly fix the connecting sleeve and the limiting plate in the current position. This combination solves the problem that the existing device is difficult to accurately position the height of the metal parts. The support rod, connecting sleeve, locking screw and limiting plate work together to achieve fast and accurate height adjustment and fixation, ensuring that the metal parts remain stable during processing and greatly improving the product processing quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the overall structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the external structure of the support rod of this utility model.

[0022] In the diagram: 1. Workbench; 2. Threaded rod; 3. Handle; 4. Connecting block; 5. Positioning rod one; 6. Inclined plate; 7. Base; 8. Rotating column; 9. Mold; 10. Slide groove; 11. Positioning rod two; 12. Limiting block; 13. Support rod; 14. Connecting sleeve; 15. Locking screw; 16. Limiting plate; 17. Bracket; 18. Electric push rod; 19. Limiting rod; 20. Bending head; 21. Threaded sleeve. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] Example 1: A metal bending device includes a workbench 1. Threaded sleeves 21 are fixedly connected to the interior of both sides of the workbench 1. A threaded rod 2 is threadedly connected inside each threaded sleeve 21. A connecting block 4 is rotatably connected to the other end of each threaded rod 2. A base 7 is fixedly connected to the top of the workbench 1. Rotating columns 8 are rotatably connected to the interior of both sides of the base 7. A mold 9 is fixedly connected to the outer wall of each rotating column 8. A limiting block 12 is fixedly connected to the outer wall of each mold 9. An inclined plate 6 is provided between the mold 9 and the connecting block 4. One end of the inclined plate 6 is connected to the connecting block 4 via a positioning rod 5. The other end of the inclined plate 6 is rotatably connected to the limiting block 12 via the positioning rod 5, and the positioning rod 5 is rotatably connected to the connecting block 4. A handle 3 is fixedly connected to the other end of each threaded rod 2. Slide grooves 10 are provided inside both sides of the workbench 1. The connecting block 4 is slidably connected to the slide groove 10. A pair of positioning rods 11 are fixedly connected inside the slide groove 10. The connecting blocks 4 on both sides are slidably connected to the outer wall of the positioning rods 11.

[0026] During metal bending operations, rotating the handles 3 located on both sides of the device causes the connected threaded rod 2 to rotate synchronously. Due to the action of the threaded sleeve 21 and the constraint of the limit, the threaded rod 2 moves inward along the axial direction. During this movement, the threaded rod 2 pushes the connected connecting block 4 towards the center position. The connecting block 4's movement trajectory is limited by the positioning rod 11, ensuring the accuracy of the movement direction. As the connecting block 4 moves towards the center, it pushes the inclined plate 6 on the positioning rod 5 forward. The end of the inclined plate 6 connects to the mold 9, which is installed and positioned within the base 7 via the rotating column 8. Because the length of the inclined plate 6 is fixed, when the inclined plate 6 moves forward, it causes the mold 9 to rotate around the rotating column 8 with the rotating column as its apex. Through this operation, the angle between the two molds 9 can be flexibly adjusted.

[0027] Example 2: The difference between this example and Example 1 is that, in this example, a pair of support rods 13 are fixedly connected to both sides of the top of the workbench 1, and a connecting sleeve 14 is slidably connected to the outer wall of each support rod 13. A locking screw 15 is provided inside each connecting sleeve 14, and a limit plate 16 is provided outside the connecting sleeve 14. A bracket 17 is fixedly connected to the top of the workbench 1, and an electric push rod 18 is fixedly connected to the top of the bracket 17. A bending head 20 is fixedly connected to the output end of the electric push rod 18, and the bending head 20 is slidably connected between the two molds 9. A pair of limit rods 19 are fixed to the top of the bending head 20, and the limit rods 19 are slidably connected inside the bracket 17.

[0028] First, place the metal part between the two limiting plates 16. Since the height of the metal part needs to be adapted to the top position of the mold 9, the height of the limiting plates 16 needs to be adjusted. Simply loosen the locking screw 15 by turning it. At this time, the connecting sleeve 14 can be pulled up or down as needed. The movement of the connecting sleeve 14 will drive the limiting plates 16 to adjust up and down synchronously. After the limiting plates 16 are adjusted to the appropriate height, tighten the locking screw 15 again to firmly fix the limiting plates 16 on the support rod 13. The setting of the limiting plates 16 can accurately position the metal part, effectively preventing the metal part from sliding during the bending process, which greatly improves the product quality. After the preparation is completed, start the electric push rod 18 at the top of the bracket 17. The electric push rod 18 starts to work and generates a downward thrust, which drives the bending head 20 to move downward. During the downward movement of the bending head 20, the moving path is limited by the limiting rod 19 to ensure the accuracy and stability of the movement. The bending head 20 and the mold 9 cooperate to realize the rapid bending operation of the metal part.

[0029] Working principle: When the operator needs to bend metal, they rotate the handles 3 on both sides according to the requirements. The handles 3 drive the threaded rod 2 to rotate. Through the threaded sleeve 21, the threaded rod 2 moves inward. When the threaded rod 2 moves, it drives the connecting block 4 to move towards the center. When the connecting block 4 moves, it is limited by the positioning rod 11. During the movement, the connecting block 4 pushes the inclined plate 6 on the positioning rod 5 forward. The end of the inclined plate 6 is connected to the mold 9, and the mold 9 is positioned in the base 7 by the rotating column 8. At the same time, the length of the inclined plate 6 remains unchanged, so the mold 9 rotates around the vertex of the rotating column 8 under the push of the inclined plate 6. This allows adjustment of the included angle between the two molds 9. Through their cooperation, the bending of the metal is achieved. Different bending techniques for the metal improve work efficiency. The metal part is placed between the two limiting plates 16. The height of the limiting plate 16 needs to be adjusted according to the position of the top of the mold 9. Simply rotate the loose locking screw 15, slide down or pull up the connecting sleeve 14 to adjust the limiting plate 16 up and down. Tighten the locking screw 15 to fix the limiting plate 16 on the support rod 13. The limiting plate 16 is used to position the metal part to prevent slippage during bending and improve product quality. Then, the electric push rod 18 at the top of the bracket 17 is activated. Under the action of the electric push rod 18, the bending head 20 is moved down. When the bending head 20 moves down, it is limited by the limiting rod 19. The bending head 20 works with the mold 9 to quickly bend the metal part.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A metal bending device, characterized in that: The system includes a workbench (1), with threaded sleeves (21) fixedly connected to the inside of both sides of the workbench (1). Each threaded sleeve (21) is threadedly connected to a threaded rod (2), and the other end of each threaded rod (2) is rotatably connected to a connecting block (4). A base (7) is fixedly connected to the top of the workbench (1), and rotating columns (8) are rotatably connected to the inside of both sides of the base (7). A mold (9) is fixedly connected to the outer wall of each rotating column (8), and a limit block (12) is fixedly connected to the outer wall of each mold (9). An inclined plate (6) is provided between the mold (9) and the connecting block (4), and one end of the inclined plate (6) is connected to the connecting block (4) through a positioning rod (5). The other end of the inclined plate (6) is rotatably connected to the limit block (12) through the positioning rod (5), and the positioning rod (5) is rotatably connected to the connecting block (4).

2. The metal bending device according to claim 1, characterized in that: Each of the threaded rods (2) is fixedly connected to a handle (3) at the other end. The workbench (1) has a sliding groove (10) on both sides inside, and the connecting block (4) is slidably connected in the sliding groove (10).

3. The metal bending device according to claim 2, characterized in that: A pair of positioning rods (11) are fixedly connected inside the slide groove (10), and the connecting blocks (4) on both sides are slidably connected to the outer wall of the positioning rods (11).

4. A metal bending device according to claim 3, characterized in that: A pair of support rods (13) are fixedly connected to both sides of the top of the workbench (1). A connecting sleeve (14) is slidably connected to the outer wall of each support rod (13). A locking screw (15) is provided inside each connecting sleeve (14). A limit plate (16) is provided outside the connecting sleeve (14).

5. A metal bending device according to claim 4, characterized in that: The workbench (1) is fixedly connected to a bracket (17) at the top, and an electric push rod (18) is fixedly connected to the top of the bracket (17). A bending head (20) is fixedly connected to the output end of the electric push rod (18), and the bending head (20) is slidably connected between the molds (9) on both sides.

6. A metal bending device according to claim 5, characterized in that: A pair of limiting rods (19) are fixed to the top of the bending head (20), and the limiting rods (19) are slidably connected in the bracket (17).