A bending device for manufacturing metal materials
By using an electric hydraulic cylinder-driven transmission assembly and a bevel gear transmission adjustment assembly, the problem of existing equipment being unable to adapt to metal sheets of different thicknesses has been solved, achieving stable transmission and precise bending, and improving processing efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HONGSHENG NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing bending equipment for metal material manufacturing cannot meet the processing needs of metal sheets of different thicknesses, resulting in low processing efficiency, unstable product quality, and increased energy consumption.
A transmission component driven by an electric hydraulic cylinder and an adjustment component driven by a bevel gear are designed. Through the meshing transmission of worm gear and bevel gear, stable transmission and precise bending control of metal materials of different thicknesses are achieved.
It enables stable transfer and precise bending of metal materials of different thicknesses, improves processing efficiency and quality, meets diverse production needs, and reduces material springback error.
Smart Images

Figure CN224272834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal bending processing technology, and in particular to a bending equipment for manufacturing metal materials. Background Technology
[0002] Bending equipment is an indispensable key piece of equipment in metal material manufacturing. It is mainly used to bend metal billets into specific shapes and is widely used in automobile, home appliance, and machinery manufacturing industries. Its development is based on addressing the pain points of traditional manual operation, such as low efficiency, easy damage, and low precision, which has driven the progress of automation technology. Modern bending equipment integrates high-precision control and automation technology, which significantly improves processing efficiency, product quality, and reliability, and has become an important tool for improving metal material manufacturing processes.
[0003] Existing bending equipment for metal material manufacturing generally lacks the ability to automatically adjust to the thickness of the metal sheet. This results in the width of the conveyor rollers being unable to adapt to the processing requirements of metal sheets of varying thicknesses, thus affecting processing efficiency and product quality. The main reason for this deficiency lies in the limitations of fixed equipment design, which fails to fully consider the impact of variations in metal sheet thickness on the processing technology. Furthermore, this defect can also lead to low production efficiency, increased energy consumption, and unstable product quality, severely restricting the overall technological level and sustainable development capabilities of the metal material manufacturing industry.
[0004] In response to this technical problem, this application proposes a bending device for manufacturing metal materials. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bending device for manufacturing metal materials. This device can adapt to metal materials of different thicknesses, ensure stable transmission and high precision, improve processing efficiency and quality, and flexibly adapt to different bending requirements, thereby improving processing accuracy and efficiency and meeting diverse production needs.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A bending device for manufacturing metal materials includes a connecting frame. A motor is fixedly connected to the right front end of the connecting frame, and an electric hydraulic cylinder is fixedly connected to the left front end of the connecting frame. The driving end of the electric hydraulic cylinder is connected to a transmission shaft and a transmission shaft 2 via a transmission assembly. The rear ends of both transmission shafts 1 and 2 are rotatably connected to adapter plates. A motor 2 is fixedly connected to the rear end of the connecting frame. The driving end of the motor 2 is connected to an extrusion frame 1 and an extrusion frame 2 via an adjustment assembly. A straightening wheel is rotatably connected to the outer wall of both extrusion frame 1 and extrusion frame 2.
[0008] Furthermore, the transmission component includes a worm gear slidably connected to both the upper and lower ends of the rod body, which is fixedly connected to one drive end of the motor.
[0009] Furthermore, a fixed frame is fixedly connected to the bottom front end of the connecting frame, and the bottom end of the worm gear is rotatably connected to the outer wall of the top end of the fixed frame.
[0010] Furthermore, the drive end of the electric hydraulic cylinder is fixedly connected to a movable frame, the outer wall of the front end of the first transmission shaft is rotatably connected to the inner wall of the movable frame, the outer wall of the front end of the second transmission shaft is rotatably connected to the inner wall of the front end of the connecting frame, and the top end of the worm gear is rotatably connected to the outer wall of the right end of the movable frame.
[0011] Furthermore, both the first and second transmission shafts are fixedly connected to worm gears at their front ends, and the outer diameter of the worm meshes with the outer diameter of the worm gear.
[0012] Furthermore, a fixed sliding rod is fixedly connected to the inner wall of the rear end of the connecting frame, and the inner wall of the adapter plate is slidably connected to the outer wall of the fixed sliding rod.
[0013] Furthermore, the adjustment assembly includes a transmission tube fixedly connected to the inner wall of the rear end of the first extrusion frame, a transmission rod fixedly connected to the inner wall of the rear end of the second extrusion frame, a fixed tube fixedly connected to the inner wall of the bottom end of the connecting frame, the front end of the first extrusion frame rotatably connected to the outer wall of the fixed tube, and the front end of the second extrusion frame rotatably connected to the inner wall of the fixed tube.
[0014] Furthermore, bevel gear two is fixedly connected to the front end of both the transmission tube and the transmission rod, and bevel gear one is fixedly connected to the drive end of motor two, with the outer diameters of bevel gear one and bevel gear two meshing with each other.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, after the metal material is placed on the second transmission shaft, the electric hydraulic cylinder is started to drive the moving frame to move within the connecting frame, which in turn drives the first transmission shaft to slide along the fixed slide rod, so that it closely fits the surface of the material. At the same time, the first motor is started to drive the worm gear to drive the worm wheel, thereby achieving efficient transmission. This design can adapt to metal materials of different thicknesses, ensuring stable transmission, high precision, and improving processing efficiency and quality.
[0017] 2. In this utility model, the starting motor 2 drives the bevel gear 1 to rotate, which in turn drives the two bevel gears 2 on both sides, causing the transmission rod and transmission tube to rotate synchronously in opposite directions, pushing the extrusion frame 1 and extrusion frame 2 to contract or open. This action adjusts the angle of the straightening wheel and the worm gear, realizing precise control of the curvature of the metal sheet. This design flexibly adapts to different bending requirements, improves processing accuracy and efficiency, and meets diversified production requirements. Attached Figure Description
[0018] Figure 1This is a perspective view of a bending device for manufacturing metal materials according to the present invention.
[0019] Figure 2 This is a half-sectional view of the connecting frame of a bending device for manufacturing metal materials proposed in this utility model;
[0020] Figure 3 This is a half-sectional view of the movable frame of a bending device for manufacturing metal materials proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the extrusion frame of a bending equipment for manufacturing metal materials proposed in this utility model;
[0022] Figure 5 This is a half-sectional view of the transmission tube of a bending device for manufacturing metal materials proposed in this utility model;
[0023] Figure 6 This is a two-half sectional view of the extrusion frame of a bending equipment for manufacturing metal materials proposed in this utility model.
[0024] Legend:
[0025] 1. Connecting frame; 2. Motor 1; 3. Electric hydraulic cylinder; 4. Moving frame; 5. Fixed slide bar; 6. Adapter plate; 7. Transmission shaft 1; 8. Transmission shaft 2; 9. Worm gear; 10. Fixed frame; 11. Worm; 12. Transmission rod; 13. Motor 2; 14. Bevel gear 1; 15. Bevel gear 2; 16. Transmission rod; 17. Transmission tube; 18. Extrusion frame 1; 19. Extrusion frame 2; 20. Straightening wheel; 21. Fixed tube. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0027] Reference Figure 1-3This utility model provides an embodiment of a bending device for manufacturing metal materials, comprising a connecting frame 1. A motor 2 is fixedly connected to the right front end of the connecting frame 1, and an electric hydraulic cylinder 3 is fixedly connected to the left front end of the connecting frame 1. The driving end of the electric hydraulic cylinder 3 is connected to a transmission shaft 7 and a transmission shaft 8 via a transmission assembly. A transition plate 6 is rotatably connected to the rear ends of both the transmission shaft 7 and the transmission shaft 8. The transmission assembly includes a 12 fixedly connected to the driving end of the motor 2, with worm gears 11 slidably connected to both the upper and lower ends of the 12 rod. A fixing frame 10 is fixedly connected to the bottom front end of the connecting frame 1. The bottom end of the worm gear 11 is rotatably connected to the outer wall of the top end of the fixed frame 10. The drive end of the electric hydraulic cylinder 3 is fixedly connected to the movable frame 4. The outer wall of the front end of the transmission shaft 1 is rotatably connected to the inner wall of the movable frame 4. The outer wall of the front end of the transmission shaft 2 is rotatably connected to the inner wall of the front end of the connecting frame 1. The top end of the worm gear 11 is rotatably connected to the outer wall of the right end of the movable frame 4. The front ends of both the transmission shaft 1 and the transmission shaft 2 are fixedly connected to the worm wheel 9. The outer diameter of the worm gear 11 meshes with the outer diameter of the worm wheel 9. The inner wall of the rear end of the connecting frame 1 is fixedly connected to the fixed slide rod 5. The inner wall of the adapter plate 6 is slidably connected to the outer wall of the fixed slide rod 5.
[0028] Specifically: In the pre-feeding process of the automatic metal sheet bending equipment, after the operator places the metal material to be bent, such as steel plate or aluminum plate, into position and it comes into contact with the transmission shaft 8, the electric hydraulic cylinder 3 is activated. Its piston rod drives the moving frame 4 to move precisely linearly along the preset track inside the connecting frame 1. The movement of the moving frame 4 synchronously drives the transmission shaft 7, which is rigidly connected to it. Under the guidance and constraint of the adapter plate 6, the transmission shaft 7 is ensured to slide smoothly along the axis of the fixed slide rod 5. Through this movement process, the transmission shaft 7 finally moves precisely to the set position, tightly adhering to and pressing the metal. The material surface forms an effective clamping and contact point. At the same time, the motor 2 is started, and its output shaft drives the worm gear 11 to rotate. The meshing worm gear 11 and worm wheel 9 then move relative to each other. This worm gear transmission mechanism efficiently transmits the power of the motor 2 to the worm wheel 9, integrating the synergistic effect of the clamping action of the transmission shaft 7 and the rotation drive of the worm wheel 9. This mechanism can not only stably clamp the metal material, but also provide reliable and continuous forward or backward transmission power for metal materials of different thicknesses through the transmission ratio of the worm gear, realizing a precise and controllable feeding function and preparing the material positioning for subsequent bending operations.
[0029] Reference Figures 4-6A motor 13 is fixedly connected to the rear end of the connecting frame 1. The driving end of the motor 13 is connected to the extrusion frame 18 and the extrusion frame 29 via an adjustment assembly. The outer walls of the extrusion frame 29 and the extrusion frame 18 are rotatably connected to a straightening wheel 20. The adjustment assembly includes a transmission pipe 17 fixedly connected to the inner wall of the rear end of the extrusion frame 18, a transmission rod 16 fixedly connected to the inner wall of the rear end of the extrusion frame 29, a fixed pipe 21 fixedly connected to the inner wall of the bottom end of the connecting frame 1, the front end of the extrusion frame 18 rotatably connected to the outer wall of the fixed pipe 21, and the front end of the extrusion frame 29 rotatably connected to the inner wall of the fixed pipe 21. The front ends of the transmission pipe 17 and the transmission rod 16 are both fixedly connected to a bevel gear 15. The driving end of the motor 13 is fixedly connected to a bevel gear 14, and the outer diameters of the bevel gear 14 and the bevel gear 25 mesh with each other.
[0030] Specifically: At the core deformation station of metal sheet bending and forming, motor 13 is started, and its output shaft drives bevel gear 14 to rotate actively. The rotating bevel gear 14 simultaneously meshes precisely with bevel gears 15 symmetrically arranged on its left and right sides, forming a stable and reliable bevel gear transmission pair. This meshing motion effectively distributes and transmits power to both sides, causing the two transmission rods 16 connected to them and the transmission tube 17 coaxially sleeved outside them to rotate synchronously but in opposite directions, i.e., one side rotates clockwise and the other side rotates counterclockwise. When the transmission tube 17 and the internal transmission rod 16 rotate synchronously and in opposite directions, the power is transmitted to the upper extrusion frame 18 and the lower extrusion frame 19 through the end mechanism. This linkage mechanism forces the extrusion frame 18 and the extrusion frame 19 to move in linkage with the equipment frame. Depending on the direction of rotation, the extrusion frame makes coordinated movements that bring it closer together or further apart. The opening and closing motion of this extrusion frame directly drives the spatial position change of the straightening wheel 20, which is precisely installed at its end. The key function is that this position change precisely adjusts the effective angle formed between the working surface of the straightening wheel 20 and the working surface of the transmission shaft 28 in the aforementioned feeding mechanism. By dynamically adjusting this working angle, the equipment can control the arc and radius of curvature of the sheet metal bending deformation online, in real time, and steplessly during the continuous feeding of the sheet metal. Ultimately, this mechanism enables the bending equipment to efficiently and accurately process and manufacture sheet metal workpieces with various preset arcs and bending shapes, from gentle bends to sharp bends. This significantly improves the process flexibility, precision, and production efficiency of bending processing, while also helping to reduce errors caused by material springback.
[0031] Working principle: When the user places the metal material at the second transmission shaft 8, the electric hydraulic cylinder 3 is activated, driving the moving frame 4 to move within the connecting frame 1. This causes the moving frame 4 to drive the first transmission shaft 7, which, with the cooperation of the adapter plate 6, moves along the fixed slide rod 5, allowing the first transmission shaft 7 to press against the surface of the metal material. Simultaneously, when the first motor 2 is activated, it drives the worm gear 11 at the worm gear 12 to rotate, thereby driving the worm wheel 9 to transmit power, thus transferring metal materials of different thicknesses. The starting motor 13 drives the bevel gear 14 to rotate, which in turn drives the bevel gears 15 on both sides. This causes the transmission rod 16 and the transmission tube 17 to rotate synchronously in opposite directions. When the transmission tube 17 and the transmission rod 16 rotate, the extrusion frame 18 and the extrusion frame 29 can be in a contracted or outward-opening state. This changes the angle formed by the straightening wheel 20 and the worm gear 9 at the extrusion frame 18 and the extrusion frame 29, thereby forming metal sheets with different curvatures, which are convenient for bending processing.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A bending device for manufacturing metal materials, comprising a connecting frame (1), characterized in that: A motor (2) is fixedly connected to the right front end of the connecting frame (1), and an electric hydraulic cylinder (3) is fixedly connected to the left front end of the connecting frame (1). The driving end of the electric hydraulic cylinder (3) is connected to a transmission shaft (7) and a transmission shaft (8) through a transmission assembly. The rear ends of the transmission shaft (7) and the transmission shaft (8) are rotatably connected to a transition plate (6). A motor (13) is fixedly connected to the rear end of the connecting frame (1). The driving end of the motor (13) is connected to an extrusion frame (18) and an extrusion frame (19) through an adjustment assembly. The outer walls of the extrusion frame (19) and the extrusion frame (18) are rotatably connected to a straightening wheel (20).
2. The bending equipment for manufacturing metal materials according to claim 1, characterized in that: The transmission component includes (12) fixedly connected to the drive end of motor (2), and worm gears (11) are slidably connected to both the upper and lower ends of the rod (12).
3. The bending equipment for manufacturing metal materials according to claim 2, characterized in that: The connecting frame (1) is fixedly connected to the bottom front end of the fixed frame (10), and the bottom end of the worm gear (11) is rotatably connected to the outer wall of the top end of the fixed frame (10).
4. A bending device for manufacturing metal materials according to claim 2, characterized in that: The electric hydraulic cylinder (3) is fixedly connected to a movable frame (4) at its drive end. The outer wall of the front end of the transmission shaft one (7) is rotatably connected to the inner wall of the movable frame (4). The outer wall of the front end of the transmission shaft two (8) is rotatably connected to the inner wall of the front end of the connecting frame (1). The top end of the worm gear (11) is rotatably connected to the outer wall of the right end of the movable frame (4).
5. A bending device for manufacturing metal materials according to claim 2, characterized in that: Both the front ends of the first transmission shaft (7) and the second transmission shaft (8) are fixedly connected to worm gears (9), and the outer diameter of the worm (11) meshes with the outer diameter of the worm gear (9).
6. A bending device for manufacturing metal materials according to claim 1, characterized in that: The inner wall of the rear end of the connecting frame (1) is fixedly connected to a fixed slide rod (5), and the inner wall of the adapter plate (6) is slidably connected to the outer wall of the fixed slide rod (5).
7. A bending device for manufacturing metal materials according to claim 1, characterized in that: The adjustment assembly includes a transmission tube (17) fixedly connected to the inner wall of the rear end of the extrusion frame one (18), a transmission rod (16) fixedly connected to the inner wall of the rear end of the extrusion frame two (19), a fixed tube (21) fixedly connected to the inner wall of the bottom end of the connecting frame (1), the front end of the extrusion frame one (18) rotatably connected to the outer wall of the fixed tube (21), and the front end of the extrusion frame two (19) rotatably connected to the inner wall of the fixed tube (21).
8. A bending device for manufacturing metal materials according to claim 7, characterized in that: The front ends of the transmission tube (17) and the transmission rod (16) are both fixedly connected to bevel gear two (15), and the drive end of the motor two (13) is fixedly connected to bevel gear one (14). The outer diameter of bevel gear one (14) and the outer diameter of bevel gear two (15) mesh with each other.