Steel plate bending machine
By designing a steel plate bending machine with switchable upper and lower bending grooves, limit rods, and spring devices, the problem of traditional equipment being unable to adapt to steel sheets of different thicknesses has been solved, achieving protective bending and rigidity adjustment of thin steel sheets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional steel plate bending equipment is prone to deformation when bending thin steel sheets and cannot adapt to the bending requirements of steel sheets of different thicknesses.
A steel plate bending machine was designed, comprising a switchable upper bending groove and a lower bending groove, equipped with a limit rod and a limit port, a spring device and a wear-resistant layer, to adapt to the bending requirements of steel sheets of different thicknesses, and the rigidity can be adjusted by the limit rod and the spring device.
It enables flexible bending of steel sheets of different thicknesses, reduces deformation of thin steel sheets, and improves the applicability and rigidity adjustment capability of the equipment.
Smart Images

Figure CN224073061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a steel plate bending machine, belonging to the technical field of bending machines. Background Technology
[0002] Steel plate bending equipment is a machine that processes metal steel plates into the required shape. It usually includes a pressure device, a bending die, and a support frame. In the processing of steel materials, it is necessary to process and improve the shape of the steel plate. By applying pressure, the steel plate is bent on the bending die, thereby realizing the processing of the steel plate.
[0003] Traditional steel plate bending equipment uses the same bending force and bending base rigidity when bending steel plates. This means it can only bend steel plates of similar thickness. When encountering thinner steel plates, the bending force is relatively large, which can easily cause deformation of the thinner steel plates. Therefore, to address the above issues, a steel plate bending machine is proposed. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a steel plate bending machine to solve the existing problems.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a steel plate bending machine, the structure of which includes a machine body, a base plate fixed inside the machine body, a bending base on the base plate, a punch directly above the bending base, a cylinder on the machine body and the output shaft of the cylinder being connected to the punch, an extension plate connected to one side of the base plate, and an upper bending groove and a lower bending groove opened on the bending base, both of which are matched with the punch.
[0006] Furthermore, the base plate is also provided with a limiting rod and a vertical rod. The limiting rod is located at the front and rear ends of the base plate, and the vertical rod is located in the middle of the base plate. The height of the limiting rod is twice that of the vertical rod.
[0007] Furthermore, the bending base has a limiting port and an opening. The limiting port is located at both the front and rear ends of the bending base, and the height and diameter of the limiting port and the opening match the limiting rod. The opening is located in the middle of the bending base.
[0008] Furthermore, a spring device is provided inside the opening, and the spring device is located in the middle of the opening. The spring device consists of an upper plate and a lower plate located inside the opening cavity, and a spring located between the upper plate and the lower plate. The lower plate is also provided with a socket, the diameter of which matches the vertical rod. The upper plate is fixedly connected, and the lower plate is movably connected.
[0009] Furthermore, the extension plate is composed of an upper extension plate and a lower extension plate, and a telescopic rod is connected between the upper extension plate and the lower extension plate. The upper extension plate is fixed to one side of the base plate.
[0010] Furthermore, the upper bending groove is coated with a wear-resistant layer, and the lower bending groove is bonded with an elastic layer, both of which are made of conventional materials.
[0011] The beneficial effects of this utility model are:
[0012] By providing an upper bending groove and a lower bending groove on the bending base, the upper bending groove and the lower bending groove can be switched as needed, thus adapting to thick steel and thin steel;
[0013] To ensure the switching and fixing of the bending base, a limit rod and a limit port are provided to enable the disassembly and fixing of the bending base;
[0014] To ensure that the lower bending groove reduces rigidity when working with thin steel, a spring device is provided to reduce rigidity when bending thin steel.
[0015] The work of the bending base is further guaranteed by incorporating a wear-resistant layer and an elastic layer. Attached Figure Description
[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of a steel plate bending machine according to the present invention;
[0018] Figure 2 This is a schematic diagram of the base plate structure of a steel plate bending machine according to the present invention;
[0019] Figure 3 This is a schematic diagram of the bending base structure of a steel plate bending machine according to the present invention;
[0020] Figure 4 This is a schematic diagram of the opening structure of a steel plate bending machine according to the present invention.
[0021] In the diagram: 1. Body; 2. Base plate; 3. Bending base; 4. Punch; 5. Cylinder; 6. Extension plate; 7. Upper bending groove; 8. Lower bending groove; 201. Limiting rod; 202. Vertical rod; 301. Limiting port; 302. Opening; 303. Spring device; 304. Upper plate; 305. Lower plate; 306. Spring; 307. Insertion port; 601. Upper extension plate; 602. Lower extension plate; 603. Telescopic rod. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Please see Figures 1-4 This utility model provides a technical solution for a steel plate bending machine: its structure includes a machine body 1, a base plate 2 fixed inside the machine body 1, a bending base 3 on the base plate 2, a punch 4 directly above the bending base 3, a cylinder 5 on the machine body 1 and the output shaft of the cylinder 5 connected to the punch 4, an extension plate 6 connected to one side of the base plate 2, and an upper bending groove 7 and a lower bending groove 8 opened on the bending base 3, both of which are matched with the punch 4;
[0024] The base plate 2 is also provided with a limiting rod 201 and a vertical rod 202. The limiting rod 201 is located at the front and rear ends of the base plate 2, and the vertical rod 202 is located in the middle of the base plate 2. The height of the limiting rod 201 is twice that of the vertical rod 202. The bending base 3 has a limiting port 301 and an opening 302. The limiting port 301 is located at the front and rear ends of the bending base 3, and the height and diameter of the limiting port 301 and the opening 302 are matched with those of the limiting rod 201. The opening 302 is located at the front and rear ends of the base plate 2. At the middle position of the bending base 3, a spring device 303 is provided in the opening 302. The spring device 303 is located in the middle position of the opening 302. The spring device 303 consists of an upper plate 304 and a lower plate 305 located in the inner cavity of the opening 302, and a spring 306 located between the upper plate 304 and the lower plate 305. The lower plate 305 is also provided with a socket 307. The diameter of the socket 307 matches the vertical rod 202. The upper plate 304 is fixedly connected, and the lower plate 305 is movably connected.
[0025] The extension plate 6 is composed of an upper extension plate 601 and a lower extension plate 602. A telescopic rod 603 is also connected between the upper extension plate 601 and the lower extension plate 602. The upper extension plate 601 is fixed to one side of the base plate 2.
[0026] The upper bending groove 7 is coated with a wear-resistant layer, and the lower bending groove 8 is bonded with an elastic layer.
[0027] For example, during operation, the upper extension plate 601 is first adjusted to be flush with the bending base 3, and then the steel plate to be bent is placed on the upper extension plate 601 and the bending base 3. The cylinder 5 drives the punch 4 to press down the steel plate to achieve bending of the steel plate.
[0028] When it is necessary to bend the thin steel plate, after disassembling the bending base 3, the lower bending groove 8 faces upward and the upper bending groove 7 faces downward. Then, the bending base 3 is installed through the limiting rod 201, the vertical rod 202, the limiting port 301, and the opening 302. After installation, since the upper plate 304 provided in the opening 302 will face downward, the vertical rod 202 will compress the spring 306 under the action of the weight of the bending base 3, thereby changing the rigidity of the bending base 3 and ensuring the bending of the thin steel plate.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] 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 steel plate bending machine, comprising a machine body (1), a base plate (2) fixed inside the machine body (1), a bending base (3) on the base plate (2), a punch (4) directly above the bending base (3), a cylinder (5) on the machine body (1) and the output shaft of the cylinder (5) connected to the punch (4), characterized in that: The bottom plate (2) is connected with an extension plate (6), the bending base (3) is provided with an upper bending groove (7) and a lower bending groove (8), and the upper bending groove (7) and the lower bending groove (8) are matched with the punch (4).
2. A sheet steel bending machine according to claim 1, characterised in that: The bottom plate (2) is provided with a limiting rod (201) and a vertical rod (202), the limiting rod (201) is arranged at the front and rear ends of the bottom plate (2), the vertical rod (202) is arranged at the middle position of the bottom plate (2), and the height of the limiting rod (201) is twice the height of the vertical rod (202).
3. A sheet steel bending machine according to claim 2, characterised in that: The bending base (3) is provided with a limiting hole (301) and an opening (302), the limiting hole (301) is arranged at the front and rear ends of the bending base (3), the height and diameter of the limiting hole (301) and the opening (302) are matched with the limiting rod (201), and the opening (302) is arranged at the middle position of the bending base (3).
4. A sheet steel bending machine according to claim 3, characterised in that: The opening (302) is provided with a spring device (303), the spring device (303) is arranged at the middle position of the opening (302), the spring device (303) is composed of an upper plate (304) and a lower plate (305) arranged in the inner cavity of the opening (302) and a spring (306) arranged between the upper plate (304) and the lower plate (305), the lower plate (305) is provided with an insertion hole (307), the diameter of the insertion hole (307) is matched with the vertical rod (202), the upper plate (304) is fixedly connected, and the lower plate (305) is movably connected.
5. A sheet metal bending machine according to claim 1, characterized in that: The extension plate (6) is composed of an upper extension plate (601) and a lower extension plate (602), and a telescopic rod (603) is arranged between the upper extension plate (601) and the lower extension plate (602), and the upper extension plate (601) is fixedly connected to one side of the bottom plate (2).
6. A sheet steel bending machine according to claim 1, characterized in that: The upper bending groove (7) is coated with a wear-resistant layer, and the lower bending groove (8) is bonded with an elastic layer.