Angle-adjustable bending machine for sheet metal processing
By combining a drive motor and a transmission screw, the problems of low precision and energy waste in pneumatic bending machines are solved, achieving high-precision and low-cost sheet metal processing, which is suitable for sheet metal processing, machinery manufacturing, automotive and home appliance industries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING DINGLI SCREEN IND CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-09
AI Technical Summary
Existing pneumatic bending machines suffer from reduced machining accuracy due to wear of cylinder seals, making it difficult to process thick steel plates. Furthermore, the air supply system still needs to run when not in use, resulting in waste and increased costs.
It uses a drive motor to drive the transmission screw, and through the cooperation of an angle sensor and control module, it can achieve precise bending angle and bend thicker sheet metal parts. The motor does not need to work continuously when not in use.
It improves bending accuracy and controllability, reduces processing costs, enables bending thicker sheet metal parts, and reduces energy waste.
Smart Images

Figure CN224333158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sheet metal processing, specifically to an angle-adjustable bending machine for sheet metal processing. Background Technology
[0002] A sheet metal bending machine is a specialized machine tool used to bend and shape metal sheets. It is widely used in sheet metal processing, machinery manufacturing, automotive, home appliance, and steel structure industries. Existing angle-adjustable bending machines typically employ pneumatic drive, using compressed air as a power source. A cylinder drives a slider to move the upper die, thus bending the metal sheet. The bending angle can be adjusted by regulating the rotation angle of the bending plate. However, these common angle-adjustable sheet metal bending machines still have shortcomings:
[0003] As the cylinder seals wear down, the machining accuracy can be reduced. Furthermore, due to the limitations of the cylinder diameter and air pressure, it is difficult to process thicker steel plates. Moreover, when the pneumatic bending machine is not in use, the air supply system still needs to be running to maintain air pressure, resulting in a waste of air supply and an increase in processing costs. Utility Model Content
[0004] The purpose of this utility model is to provide an angle-adjustable bending machine for sheet metal processing, in order to solve the problems mentioned in the background art, such as the reduction in processing accuracy due to wear of the cylinder seal ring, the difficulty in processing thicker steel plates due to the limitation of the cylinder diameter and air pressure, and the waste of air source and increased processing costs caused by the air source system still needing to operate to maintain air pressure when the pneumatic bending machine is not in use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an angle-adjustable bending machine for sheet metal processing, comprising a bending machine body, wherein a limiting component for limiting sheet metal parts is provided inside the bending machine body, an installation groove is provided on the surface of the bending machine body, and rotating seats are fixedly connected to both sides of the inner wall of the installation groove, a bending component is rotatably connected between the two rotating seats, a support plate is fixedly connected to the front of the bending machine body, and a driving mechanism is provided on the top of the support plate.
[0006] Preferably, the limiting component includes two limiting cylinders and a pressure block, and the output ends of the two limiting cylinders are fixedly connected to the surface of the pressure block, which helps to ensure stability during bending.
[0007] Preferably, the bending assembly includes a bending plate, with rotating shaft plates fixedly connected to both ends of the bending plate. A rotating shaft is fixedly connected to one side of each of the two rotating shaft plates. The rotating shaft is disposed inside the rotating seat. Connecting seats are fixedly connected to both ends of one side of the bending plate. A connecting rod groove is provided on one side of the connection between the two connecting seats and the bending plate. An angle sensor is fixedly installed at one end of the surface of the bending plate, which is beneficial to improving the bending angle and bending accuracy of the sheet metal parts.
[0008] Preferably, the driving mechanism includes a bending motor, which is mounted on a support plate. A screw plate is fixedly connected to one end of the top of the support plate. A transmission screw is provided between the screw plate and the bending motor. A driving component is threaded onto the surface of the transmission screw, which helps to provide stable and controllable bending pressure and enables the bending of thicker sheet metal parts.
[0009] Preferably, the driving component includes a screw hole plate, which is disposed on the transmission screw. Both ends of the screw hole plate are fixedly connected to connecting rods, and one end of the connecting rod is provided with a rotating hole.
[0010] Preferably, guide hole plates are fixedly connected to both sides of the top of the support plate, the interior of the guide hole plate is slidably connected to the surface of the connecting rod, a connecting rod is provided between the connecting seat and the rotating hole, and a reinforcing rib is fixedly connected to the connection between the support plate and the bending machine body.
[0011] Compared with the prior art, the beneficial effects of this utility model are: by driving the transmission screw to rotate through the drive motor, the screw hole plate moves and drives the bending plate to rotate through the connecting rod to bend the sheet metal parts. Through the high precision transmission screw, the bending accuracy is higher. The drive motor provides power, and the bending pressure is stable and controllable, which can bend thicker sheet metal parts. Moreover, when not in use, the drive motor does not need to work continuously, which can greatly reduce the bending cost.
[0012] By combining the angle sensor with the control module, the bending angle and bending accuracy can be well controlled. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the angle-adjustable bending machine for sheet metal processing according to this utility model;
[0014] Figure 2 A is a partial enlarged view of the structure of the angle-adjustable bending machine for sheet metal processing of this utility model;
[0015] Figure 3 This is a structural diagram of the bending assembly of the sheet metal processing adjustable bending machine of this utility model.
[0016] Figure 4This is a structural diagram of the adjustable angle mounting groove for a bending machine used in sheet metal processing according to this utility model.
[0017] In the diagram: 1. Bending machine body; 2. Mounting slot; 3. Rotating seat; 4. Bending plate; 5. Rotating shaft plate; 6. Rotating shaft; 7. Angle sensor; 8. Connecting seat; 9. Connecting rod groove; 10. Connecting rod; 11. Support plate; 12. Bending motor; 13. Screw plate; 14. Transmission screw; 15. Screw hole plate; 16. Guide hole plate; 17. Connecting support rod; 18. Reinforcing rib; 19. Limiting cylinder; 20. Pressing block. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-4 This utility model provides an angle-adjustable bending machine for sheet metal processing, including a bending machine body 1. The bending machine body 1 is provided with a limiting component for limiting sheet metal parts. The surface of the bending machine body 1 is provided with an installation groove 2. Rotating seats 3 are fixedly connected to both sides of the inner wall of the installation groove 2. A bending component is rotatably connected between the two rotating seats 3. A support plate 11 is fixedly connected to the front of the bending machine body 1. A driving mechanism is provided on the top of the support plate 11.
[0020] See Figure 2 , Figure 3 and Figure 4 Furthermore, the limiting assembly includes two limiting cylinders 19 and a pressure block 20. The output ends of the two limiting cylinders 19 are fixedly connected to the surface of the pressure block 20. The bending assembly includes a bending plate 4. Both ends of the bending plate 4 are fixedly connected to rotating shaft plates 5. One side of each of the two rotating shaft plates 5 is fixedly connected to a rotating shaft 6, which is located inside the rotating seat 3. Both ends of one side of the bending plate 4 are fixedly connected to connecting seats 8. A connecting rod groove 9 is provided on one side of the connection between the two connecting seats 8 and the bending plate 4. An angle sensor 7 is fixedly installed on one end of the surface of the bending plate 4. The driving mechanism includes a bending motor 12, which is mounted on a support plate 11. A screw plate 13 is fixedly connected to one end of the top of the plate 11. A transmission screw 14 is provided between the screw plate 13 and the bending motor 12. A driving component is threadedly connected to the surface of the transmission screw 14. The driving component includes a screw hole plate 15. The screw hole plate 15 is provided on the transmission screw 14. A connecting support rod 17 is fixedly connected to both ends of the screw hole plate 15. A rotating hole is provided at one end of the connecting support rod 17. Guide hole plates 16 are fixedly connected to both sides of the top of the support plate 11. The interior of the guide hole plate 16 is slidably connected to the surface of the connecting support rod 17. A connecting rod 10 is provided between the connecting seat 8 and the rotating hole. A reinforcing rib 18 is fixedly connected to the connection between the support plate 11 and the bending machine body 1.
[0021] In use, the bending motor 12 is started, and the transmission screw 14 is fixedly connected to the output end of the bending motor 12. At this time, the transmission screw 14 rotates, which causes the screw hole plate 15 to move closer to the bending plate 4. The movement of the screw hole plate 15 drives the two connecting support rods 17 to move. The two ends of the connecting rod 10 are rotatably connected to the rotating holes on the connecting seat 8 and the connecting support rod 17, respectively. At this time, the connecting support rod 17 causes the connecting rod 10 to move, which rotates the bending plate 4 around the axis of the rotating seat 3 and the rotating shaft 6, thus performing the bending process on the sheet metal parts. The bending machine body 1 has a control module inside. The angle sensor 7 and the bending motor 12 are electrically connected to the control module. When bending, the angle sensor 7 detects that the bending angle has reached the set value and sends a signal to the control module. The control module causes the bending motor 12 to stop rotating, and the bending is completed.
[0022] In this embodiment, the sheet metal part to be bent is placed on the processing table of the bending machine body 1. At this time, two limit cylinders 19 are activated via the control panel. The two limit cylinders 19 simultaneously move the pressure block 20 downwards to press down on the sheet metal part. Simultaneously, the bending motor 12 is activated, causing the bending plate 4 to rotate and bend the sheet metal part. When placing the sheet metal part, the bending line of the sheet metal part needs to be aligned with the edge line of the mounting groove 2. When placing the sheet metal part, the operator stands on the side away from the bending motor 12. The connecting rod groove 9 allows the connecting rod 10 to enter the groove when it rotates, preventing the bending plate 4 from interfering with the rotation of the connecting rod 10. The transmission screw 14 has high precision, which is beneficial for the accuracy of the bending angle. After bending is completed, the bending is controlled via the control panel. The bending motor 12 is controlled to reset the screw hole plate 15. At this time, the bending plate 4 and the bending machine body 1 are on the same horizontal plane. The sheet metal part can be removed by resetting the limit cylinder 19 through the control panel. The processing is completed. It should be noted that this utility model is an angle-adjustable bending machine for sheet metal processing. All parts are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection between each electrical component in sequence. The detailed connection method is the technology known in the art.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An angle-adjustable bending machine for sheet metal processing, comprising a bending machine body (1), characterized in that: The bending machine body (1) is provided with a limiting component for limiting sheet metal parts. The surface of the bending machine body (1) is provided with an installation groove (2). Rotating seats (3) are fixedly connected to both sides of the inner wall of the installation groove (2). A bending component is rotatably connected between the two rotating seats (3). A support plate (11) is fixedly connected to the front of the bending machine body (1). A driving mechanism is provided on the top of the support plate (11).
2. The sheet metal processing angle-adjustable bending machine according to claim 1, characterized in that: The limiting component includes two limiting cylinders (19) and a pressing block (20), and the output ends of the two limiting cylinders (19) are fixedly connected to the surface of the pressing block (20).
3. The sheet metal processing angle-adjustable bending machine according to claim 1, characterized in that: The bending assembly includes a bending plate (4), with a rotating shaft plate (5) fixedly connected to both ends of the bending plate (4). A rotating shaft (6) is fixedly connected to one side of each of the two rotating shaft plates (5). The rotating shaft (6) is located inside the rotating seat (3). A connecting seat (8) is fixedly connected to both ends of one side of the bending plate (4). A connecting rod groove (9) is provided on one side of the connection between the two connecting seats (8) and the bending plate (4). An angle sensor (7) is fixedly installed on one end of the surface of the bending plate (4).
4. The sheet metal processing angle-adjustable bending machine according to claim 3, characterized in that: The driving mechanism includes a bending motor (12), which is mounted on a support plate (11). A screw plate (13) is fixedly connected to one end of the top of the support plate (11). A transmission screw (14) is provided between the screw plate (13) and the bending motor (12). A driving component is threaded onto the surface of the transmission screw (14).
5. The sheet metal processing angle-adjustable bending machine according to claim 4, characterized in that: The driving component includes a screw hole plate (15), which is disposed on the transmission screw (14). Both ends of the screw hole plate (15) are fixedly connected to connecting rods (17), and one end of the connecting rod (17) is provided with a rotating hole.
6. The sheet metal processing angle-adjustable bending machine according to claim 5, characterized in that: Guide hole plates (16) are fixedly connected to both sides of the top of the support plate (11). The interior of the guide hole plate (16) is slidably connected to the surface of the connecting rod (17). A connecting rod (10) is provided between the connecting seat (8) and the rotating hole. A reinforcing rib (18) is fixedly connected to the connection between the support plate (11) and the bending machine body (1).