A bending device for processing metal products

Abstract

This utility model discloses a bending device for metal product processing, relating to the field of metal product processing. It addresses the problem in existing technologies where the lack of a limiting structure for the metal sheet leads to impact on the metal sheet during bending, causing displacement and tilting of the metal product and affecting bending accuracy. The device features sliding slots extending vertically through the four corners of the lifting action plate, oriented in the front-rear direction. A fixed rod is fixed within each sliding slot, and a sliding seat is slidably connected to the outside of the fixed rod within the sliding slot. A pressure spring is installed between the outer end face of the sliding slot and the sliding seat, along the outside of the fixed rod. A connecting rotating rod is rotatably connected to the sliding seat via a shaft. Two connecting rotating rods at each end are connected to a lower connecting strip at their other ends. The other end of the connecting rotating rod extends into the groove of the lower connecting strip and is rotatably connected to the lower connecting strip via a shaft.

Description

Technical Field

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

[0002] As a crucial component of the manufacturing industry, the metal products sector encompasses multiple stages from raw material processing to finished product manufacturing. Its products are widely used in numerous fields, including construction, machinery manufacturing, automotive, aerospace, and electronics. With the continued development of the global economy and the ongoing advancement of industrialization, the market demand for metal products is showing a steady growth trend.

[0003] Bending is a common processing technique in metal product manufacturing. Its purpose is to bend raw materials such as metal sheets and profiles into specific shapes and angles according to design requirements to meet the needs of different products. For example, in the field of machinery manufacturing, bending is often used to manufacture various boxes, brackets, frames, and other components. Appropriate bending shapes and angles enable more precise assembly of components and improve the operational accuracy and stability of mechanical equipment. With the development of industrial technology, mechanical bending equipment has been applied to the bending of metal products. The application of mechanical bending equipment has made the bending process of metal products more standardized and regulated, capable of meeting processing tasks of different scales and precision requirements.

[0004] Common mechanical bending equipment includes manual bending machines, hydraulic bending machines, and CNC bending machines. For example, the Chinese authorized patent (202222929509.7, Bending Device for Strip Metal Products) with announcement number CN218982793U: An electric cylinder is bolted to a fixed frame; a pneumatic rod is connected to an electric pneumatic clamp; a pressure plate is bolted to the pneumatic rod; the electric cylinder can drive the pressure plate to rise and fall via the pneumatic rod, achieving pressure and limiting at one end of the strip metal product; an electric hydraulic rod is bolted to a fixed frame; a mounting base is bolted to the telescopic end of the electric hydraulic rod; the electric hydraulic rod can drive the mounting base to rise and fall; the mounting base facilitates the installation and replacement of the bending plate; the bending plate is bolted to the mounting base; a length measuring sensor is bolted to the worktable; and the bending plate can perform bending operations on strip metal products.

[0005] The aforementioned existing technology has the function of positioning and bending, but it does not have a limiting structure for the metal sheet. When the bending head presses down to bend, it has an impact on the metal sheet, and the metal product is prone to displacement and tilting, affecting the bending accuracy. Utility Model Content

[0006] The purpose of this utility model is to provide a bending device for metal product processing, so as to solve the problem mentioned in the background art that there is no limiting structure for the metal sheet, and the bending head has an impact on the metal sheet when bending, which makes the metal product easy to shift and tilt, affecting the bending accuracy.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bending device for metal product processing, comprising a support base, with support rods fixed at the four corners of the upper end of the support base, and a fixed top plate fixed at the upper end of the four support rods; a driving hydraulic cylinder is centrally mounted on the upper end of the fixed top plate, and a lifting action plate is mounted on the lower end of the fixed top plate along the output rod end of the driving hydraulic cylinder; sliding slots are vertically and horizontally opened at the four corners of the end face of the lifting action plate, the sliding slots are arranged in the front-back direction, a fixed rod is fixed in the sliding slot, a sliding seat is slidably connected to the outside of the fixed rod in the sliding slot, a pressure spring is installed between the outer end face of the sliding slot and the sliding seat along the outside of the fixed rod, a connecting rotating rod is rotatably connected to the sliding seat via a shaft, and the other ends of the two connecting rotating rods at each end are connected to a lower connecting strip, the other end of the connecting rotating rod extends into the rotating groove of the lower connecting strip and is rotatably connected to the lower connecting strip via a shaft.

[0008] Preferably, the lower end face of the lower connecting strip is provided with a lower rotating groove, and a rotating part is provided in the lower rotating groove. The rotating part is rotatably connected to the lower connecting strip through a rotating shaft, and a lower pressing part is integrally connected to the lower end of the rotating part.

[0009] Preferably, a torsion spring is installed between the lower connecting strip and the rotating part along the outside of the rotation axis.

[0010] Preferably, telescopic rods are installed on both sides between the lifting action plate and the lower connecting bar.

[0011] Preferably, the lower end of the lifting action plate is fixed with mounting plates at the front and rear ends, and the two mounting plates are fixed with a bent head by bolts. Limiting rods are fixed on both sides of the upper end of the lifting action plate, and the limiting rods extend upward through the fixed top plate.

[0012] Preferably, the lower ends of the four supporting uprights are jointly fixed with a middle fixing platform. The upper end of the middle fixing platform is fixed with an upper mounting plate by screws. The upper end of the upper mounting plate is fixed with an upper support platform. A V-shaped groove is opened in the middle of the upper end of the upper support platform, and the V-shaped groove corresponds to the upper and lower ends of the bending head.

[0013] Preferably, the front end of the intermediate fixed platform is fixed with a front support platform by screws, and the upper surface of the front support platform is flush with the upper surface of the upper support platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) In this utility model, by setting the lower connecting strip, the lower connecting strip provides a stable clamping force for the metal sheet during the bending process, effectively preventing the metal sheet from shifting during the bending process, greatly improving the bending accuracy, making the dimensions of the bent metal products more accurate, and meeting the requirements of high-quality production.

[0015] (2) In this utility model, the lower pressing part can rotate and continuously fit with the metal sheet as it is raised, providing a stable pressing force for the metal sheet, effectively preventing the metal sheet from shifting during bending, making the bending angle and size more accurate, greatly improving the bending accuracy, and meeting the high-precision processing requirements.

[0016] (3) In this utility model, after bending, each floating clamping structure can be quickly reset by the action of pressure spring and torsion spring, which reduces equipment downtime, improves production efficiency, and enables enterprises to complete production tasks faster and improve market competitiveness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a bending device for processing metal products according to the present invention from a frontal perspective. Figure 2 This is a side view of a bending device for processing metal products according to the present invention; Figure 3 This is a front view of a bending device for processing metal products according to the present invention; Figure 4 This is a schematic diagram of the overall structure of a bending device for processing metal products according to the present invention, viewed from below. Figure 5 This is an enlarged view of section A of the bending device for processing metal products according to this utility model.

[0018] In the diagram: 1. Support base; 2. Support pole; 3. Fixed top plate; 4. Intermediate fixed platform; 5. Upper mounting plate; 6. Upper support platform; 7. V-groove; 8. Front support platform; 9. Drive hydraulic cylinder; 10. Lifting action plate; 11. Limiting pole; 12. Mounting plate; 13. Bending head; 14. Sliding slot; 15. Fixed rod; 16. Sliding seat; 17. Pressure spring; 18. Lower connecting strip; 19. Connecting rotating rod; 20. Lower rotating slot; 21. Rotating part; 22. Lower pressing part; 23. Rotating shaft; 24. Torsion spring; 25. Telescopic rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figures 1-5 One embodiment provided by this utility model: The main structure of the bending device includes a stable support base 1, which provides fundamental support for the entire device and ensures its stability during operation. At the four corners of the upper end of the support base 1, four support columns 2 are fixed in place by welding or bolting. These four support columns 2 serve to support and secure other components. A fixed top plate 3 is bolted to the upper ends of the four support columns 2. The fixed top plate 3 serves as the top support structure of the device and provides a platform for the installation of other components.

[0021] A driving hydraulic cylinder 9 is installed at the center of the upper end of the fixed top plate 3. This cylinder serves as the power source for the entire device, providing power for the bending operation. It is equipped with oil pipes, an oil tank, and a pumping structure to ensure stable drive. A lifting plate 10 is installed at the lower end of the fixed top plate 3, along the output rod of the driving hydraulic cylinder 9. When the driving hydraulic cylinder 9 operates, its output rod drives the lifting plate 10 to move up and down, thus achieving the lifting and lowering of the bending head. Mounting plates 12 are fixed to the front and rear ends of the lower end of the lifting plate 10. A bending head 13 is bolted between the two mounting plates 12. The bending head 13 is the component that directly bends the metal sheet; its shape and size can be designed according to different bending requirements. Limiting rods 11 are fixed to both sides of the upper end of the lifting plate 10, extending upwards through the fixed top plate 3. The limiting rods 11 limit the vertical movement of the lifting plate 10, preventing excessive movement and damage to the equipment, thus ensuring the safety of equipment operation.

[0022] A sliding slot 14 is formed vertically at each of the four corners of the lifting plate 10, with the slots arranged in a front-to-back direction. A fixed rod 15 is fixed within the sliding slot 14, and a sliding seat 16 is slidably connected to the outside of the fixed rod 15 within the sliding slot 14. The fixed rod 15 provides guidance and support for the sliding seat 16, allowing it to slide freely on the fixed rod 15. A pressure spring 17 is installed between the outer end face of the sliding slot 14 and the sliding seat 16, along the outside of the fixed rod 15. When the sliding seat 16 slides outward, the pressure spring 17 is compressed, generating elastic force. This design ensures the stability of the metal sheet during bending, when the two ends of the metal sheet are bent upwards, causing the lower connecting strip 18 and the sliding seat 16 to move. The pressure spring 17 applies a certain clamping force to the metal sheet through the transmission of the sliding seat 16, the connecting rotating rod 19, the lower connecting strip 18, and the lower pressing part 22. The sliding seat 16 is rotatably connected to a connecting rotating rod 19 via a shaft. The other ends of the two connecting rotating rods 19 at each end are connected to a lower connecting strip 18. The other end of the connecting rotating rod 19 extends into the rotating groove of the lower connecting strip 18 and is rotatably connected to the lower connecting strip 18 via a shaft.

[0023] The lower connecting strip 18 has a lower rotating groove 20 on its lower end face, and a rotating part 21 is provided in the lower rotating groove 20. The rotating part 21 is rotatably connected to the lower connecting strip 18 through a rotating shaft 23. A pressing part 22 is integrally connected to the lower end of the rotating part 21. During the bending process, when the bending head 13 presses down to bend the metal sheet, both ends of the metal sheet are lifted by the force. Through the axial connection between the rotating part 21 and the lower connecting strip 18, the pressing part 22 can rotate with the lifting of the metal sheet, always keeping it in contact with the metal sheet, providing a stable clamping force for the metal sheet, and effectively preventing the metal sheet from shifting. A torsion spring 24 is installed between the lower connecting strip 18 and the rotating part 21 along the outside of the rotating shaft 23. The torsion spring 24 provides a reset torque for the rotating part 21 and the pressing part 22, so that the pressing part 22 can quickly reset after bending.

[0024] Telescopic rods 25 are installed on both sides between the lifting action plate 10 and the lower connecting bar 18. The telescopic rods 25 can play a guiding role during the bending process, ensuring the stability of the movement of the lower connecting bar 18 and avoiding the impact on bending accuracy due to the instability of the movement of the lower connecting bar 18.

[0025] The lower ends of the four supporting uprights 2 are all fixed to a central fixing platform 4, which provides a platform for the installation of the upper mounting plate 5. The upper mounting plate 5 is fixed to the upper end of the central fixing platform 4 with screws. An upper support platform 6 is fixed to the upper end of the upper mounting plate 5. A V-shaped groove 7 is formed in the middle of the upper end of the upper support platform 6, corresponding vertically to the bending head 13. A front support platform 8 is fixed to the front end of the central fixing platform 4 with screws. The upper surface of the front support platform 8 is flush with the upper surface of the upper support platform 6, facilitating the placement and movement of the metal sheet by the operator. In actual operation, the operator places the metal sheet on the front support platform 8 and then pushes the metal sheet towards the V-shaped groove 7 until the bending position of the metal sheet is located below the bending head 13. At this point, the V-shaped groove 7 provides positioning and support for the bending of the metal sheet.

[0026] Work process: In actual operation, the staff first place the metal sheet on the front support platform 8, and then push the metal sheet towards the V-groove 7 until the bending position of the metal sheet is located at the lower end of the bending head 13.

[0027] The drive hydraulic cylinder 9 is activated, which drives the lifting plate 10 downward, thereby causing the bending head 13 and the pressing part 22 to move downward. When the bending head 13 just contacts the metal sheet, the lower end face of the pressing part 22 is just in contact with the metal sheet. The bending head 13 continues to press and bend the metal sheet downward, at which point both ends of the metal sheet are lifted up by the force. Since the rotating part 21 and the lower connecting strip 18 are connected by a shaft, the pressing part 22 will rotate as the metal sheet lifts up, continuously keeping in contact with the metal sheet and providing a stable clamping force for the metal sheet. At the same time, as the metal sheet is lifted by the force at both ends, the lower pressing part 22 rotates and moves upward. The lower connecting bar 18 moves upward synchronously, the telescopic rod 25 retracts, and the sliding seat 16 moves outward along the sliding slot 14 and the fixed rod 15. The pressure spring 17 is compressed. Through the transmission of the sliding seat 16, the connecting rotating rod 19, the lower connecting bar 18 and the lower pressing part 22, a certain clamping force is generated on the metal sheet, which further ensures the stability of the metal sheet during the bending process.

[0028] After bending is completed, the hydraulic cylinder 9 drives the lifting plate 10 to move upward, which in turn moves the bending head 13 and the lower pressing part 22 upward. Under the action of the pressure spring 17 and the torsion spring 24, each floating pressing structure resets, preparing for the next bending operation.

[0029] 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.

Claims

1. A bending device for processing metal products, comprising a support base (1), with support rods (2) fixed at the four corners of the upper end of the support base (1), and a fixed top plate (3) fixed at the upper end of the four support rods (2); characterized in that: A driving hydraulic cylinder (9) is installed at the center of the upper end of the fixed top plate (3). A lifting action plate (10) is installed at the lower end of the fixed top plate (3) along the output rod end of the driving hydraulic cylinder (9). A sliding slot (14) is opened vertically through the four corners of the end face of the lifting action plate (10). The sliding slot (14) is arranged in the front-back direction. A fixed rod (15) is fixed in the sliding slot (14). A sliding seat (16) is slidably connected to the outside of the fixed rod (15) in the sliding slot (14). A pressure spring (17) is installed between the outer end face of the sliding slot (14) and the sliding seat (16) along the outside of the fixed rod (15). A connecting rotating rod (19) is rotatably connected to the sliding seat (16) through a shaft. The other ends of the two connecting rotating rods (19) at each end are connected to a lower connecting strip (18). The other end of the connecting rotating rod (19) extends into the rotating groove of the lower connecting strip (18) and is rotatably connected to the lower connecting strip (18) through a shaft.

2. The bending device for metal product processing according to claim 1, characterized in that: The lower connecting strip (18) has a lower rotating groove (20) on its lower end face. A rotating part (21) is provided in the lower rotating groove (20). The rotating part (21) is rotatably connected to the lower connecting strip (18) through a rotating shaft (23). A lower pressing part (22) is integrally connected to the lower end of the rotating part (21).

3. The bending device for metal product processing according to claim 2, characterized in that: A torsion spring (24) is installed between the lower connecting bar (18) and the rotating part (21) along the outside of the rotating shaft (23).

4. The bending device for metal product processing according to claim 1, characterized in that: Telescopic rods (25) are installed on both sides between the lifting action plate (10) and the lower connecting bar (18).

5. The bending device for metal product processing according to claim 1, characterized in that: The lower end of the lifting action plate (10) is fixed with mounting plates (12) at the front and rear ends. The two mounting plates (12) are fixed with a bent head (13) by bolts. Limiting rods (11) are fixed on both sides of the upper end of the lifting action plate (10). The limiting rods (11) extend upward through the fixed top plate (3).

6. The bending device for metal product processing according to claim 5, characterized in that: The lower ends of the four support poles (2) are all fixed with a middle fixing platform (4). The upper end of the middle fixing platform (4) is fixed with an upper mounting plate (5) by screws. The upper end of the upper mounting plate (5) is fixed with an upper support platform (6). A V-shaped groove (7) is opened in the middle of the upper end of the upper support platform (6). The V-shaped groove (7) corresponds to the bending head (13) vertically.

7. The bending device for metal product processing according to claim 6, characterized in that: The front end of the intermediate fixed platform (4) is fixed with a front support platform (8) by screws, and the upper surface of the front support platform (8) is flush with the upper surface of the upper support platform (6).

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