Novel metal plate bending machine
By combining the isolation shaft mounting structure and the electric actuator system, the problem of unstable clamping of cylindrical workpieces in sheet metal bending machines was solved, resulting in more stable processing of cylindrical workpieces and improved processing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HAOLI ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-08
AI Technical Summary
When processing cylindrical workpieces, the clamping effect of the existing sheet metal bending machine's flat clamping structure is not stable enough, making it difficult to meet the processing requirements of cylindrical workpieces.
It adopts a barrier shaft mounting structure, a spacing adjustment mechanism and an electric actuator system. The electric actuator drives the movable column and baffle to form a V-shape, which realizes stable clamping of the cylindrical workpiece. Combined with the bending hydraulic push device and bending barrier shaft, it performs extrusion bending.
It improves the processing stability and forming effect of cylindrical workpieces, and is more stable than flat plate clamping, which can effectively complete the bending processing of cylindrical workpieces.
Smart Images

Figure CN224208873U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal bending technology, specifically a new type of sheet metal bending machine. Background Technology
[0002] Sheet metal processing is a cold working process for metal materials, including shearing, punching, bending, welding, and surface treatment. Among these processes, bending machines play a crucial role in material forming. Typically, a hydraulic shaft is used to compress the material clamped by a clamping structure, and external force is applied by a hydraulic device to bend it. Since the most common materials to be processed in sheet metal are plates, sometimes sheet metal processing involves processing plates into cylindrical workpieces. For further bending of cylindrical workpieces, the clamping effect of general flat clamping structures is poor. Utility Model Content
[0003] In view of the problems existing in the prior art, this utility model discloses a novel sheet metal bending machine. The technical solution adopted includes a base plate, a mounting box, a bending hydraulic push device, a bending pressure plate, and a bending barrier shaft. These are all common equipment components, and the control of the bending hydraulic push device is also conventional technology in this field. The remaining parts also include a barrier shaft mounting structure, a right-side through slot, a spacing adjustment mechanism, a mounting block, a frame, an electrical box, an electric push rod, an open track, a movable column, a baffle, an inner wall groove, a rear movable shaft, and a collar. A fixed mounting box is made on the base plate, and the bending hydraulic push device is installed in the mounting box. The output end of the device extends forward and a bending pressure plate is fixed to its output end. A barrier shaft mounting structure is set in the middle of the base plate, through which the bending barrier shaft is installed. A right-side through slot is opened on the right side of the base plate, and a spacing adjustment mechanism is set in the right-side through slot. The mounting blocks are installed through the spacing adjustment mechanism. The spacing between the two mounting blocks is adaptively adjusted according to the specific specifications of the material to be processed (plate or cylindrical workpiece) to ensure stable clamping and protection, guaranteeing stability during subsequent bending. An integrated open track is formed at the four corners of the mounting block. I-frames are fixedly connected between the open tracks. An electrical box is installed on the back of the I-frame. Electric actuators are installed on the sides of the enclosed section. These actuators are powered by batteries in the electrical box. Four actuators are controlled by a single switch circuit, allowing all four actuators to be activated synchronously by activating a single switch. The output ends of the actuators extend into the open track and connect to movable columns placed within it. The mounting block has a groove on its inner side, with an inner wall groove on the inner wall of the groove. The groove communicates with the open track. A shaft is fixedly connected between the left and right movable columns. The upper end of the baffle is rotatably mounted on the shaft. The two ends of the rear movable shaft are placed in two inner wall grooves, with an annular groove in the middle. A collar is fitted into this annular groove, and the other side of the collar connects to the inner side of the baffle via a rod. The body is connected. When it is necessary to clamp the cylindrical workpiece, the switch in the electrical box is activated to start each electric actuator. After the electric actuator is activated, it pushes each movable column to move. When the movable column moves forward, it drives the shaft between the movable columns forward. Because the upper part of the baffle and the lower rear end of the shaft are fitted together by the connecting collar on the movable shaft, and the movable shaft is restricted in the inner wall groove, when the electric actuator moves, the upper part of the baffle moves forward and the lower end gradually rises, causing the baffle to gradually tilt. The two mutually symmetrical baffles on the upper and lower sides form a V-shape. The two pairs of V-shaped baffles on the front and rear sides work together to clamp and stabilize the cylindrical workpiece, which is more stable than flat plate clamping.
[0004] As a preferred technical solution of this utility model, the barrier shaft mounting structure includes a barrier shaft mounting groove, a central guide shaft, a central lead screw, a barrier shaft mounting rod, and a central motor. The barrier shaft mounting groove is opened in the middle of the base plate, and the central guide shaft is fixed in the barrier shaft mounting groove. The central lead screw is rotatably mounted. The rear end of the central lead screw is rotatably connected to the front end of the inner wall of the barrier shaft mounting groove and is fixedly connected to the output shaft of the central motor installed on the front side of the base plate, which extends into the barrier shaft mounting groove. The output shaft of the central motor extends into the through hole opened on the front side of the base plate. The barrier shaft mounting rod is movably fitted with the central guide shaft and is installed in cooperation with the central lead screw. The upper surface is fixed with a bent barrier shaft.
[0005] As a preferred technical solution of this utility model, the spacing adjustment mechanism includes a bidirectional lead screw, a knob, and mounting blocks. The bidirectional lead screw is rotatably installed in the through groove on the right side. The unthreaded part of the front end of the bidirectional lead screw extends out from the through hole on the front side of the base plate and the knob is fixed at the end of the extended end. There are two mounting blocks, which are placed in the through groove on the right side and symmetrically installed on the bidirectional lead screw. The mounting block is fixed on the mounting block. The outer wall of the knob is provided with an anti-slip groove.
[0006] As a preferred technical solution of this utility model, the outer wall of the rear movable shaft is in contact with the inner wall of the inner groove.
[0007] As a preferred technical solution of this utility model, the baffle is made of rigid material.
[0008] The beneficial effects of this utility model are as follows: Through the electrical box, electric push rod, open track, movable column, baffle, inner wall groove, rear movable shaft and collar, the angle of the baffle is adjusted according to the shape of the material to be processed, i.e., plate or cylinder. When the electric push rod moves, the upper end of the baffle moves forward and the lower end gradually rises, causing the baffle to gradually tilt. The two symmetrical baffles on the upper and lower sides form a V-shape. The two pairs of V-shaped baffles on the front and rear sides work together to clamp and stabilize the cylindrical workpiece, which is more stable than flat plate clamping. The material extending to the bending blocking shaft is squeezed and bent by the cooperation of the bending hydraulic push device and the bending blocking shaft. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the left side structure of this utility model;
[0011] Figure 3 This is a cross-sectional structural diagram of some components of this utility model.
[0012] In the diagram: 1. Base plate; 2. Mounting box; 3. Bending hydraulic push device; 4. Bending pressure plate; 5. Bending barrier shaft; 6. Barrier shaft mounting groove; 7. Central guide shaft; 71. Central lead screw; 72. Barrier shaft mounting rod; 8. Central motor; 9. Right through groove; 10. Bidirectional lead screw; 11. Knob; 12. Assembly block; 14. Mounting block; 15. I-frame; 16. Electrical box; 17. Electric push rod; 18. Open track; 19. Movable column; 20. Baffle; 21. Inner wall groove; 22. Rear movable shaft; 23. Collar. Detailed Implementation
[0013] Example 1
[0014] like Figures 1 to 3 As shown, this utility model discloses a novel sheet metal bending machine. The technical solution includes a base plate 1, a mounting box 2, a bending hydraulic push device 3, a bending pressure plate 4, and a bending barrier shaft 5. Its features include: a barrier shaft mounting structure, a right-side through groove 9, a spacing adjustment mechanism, a mounting block 14, a jig 15, an electrical box 16, an electric push rod 17, an open track 18, a movable column 19, a baffle 20, an inner wall groove 21, a rear movable shaft 22, and a collar 23. A fixed mounting box 2 is made on the base plate 1, and the bending hydraulic push device 3 is installed in the mounting box 2. The output end of the bending hydraulic push device 3 extends forward, and the bending pressure plate 4 is fixed on its output end. A barrier shaft mounting structure is set in the middle of the base plate 1, through which the bending barrier shaft 5 is installed. A right-side through groove 9 is opened on the right side of the base plate 1, and a spacing adjustment mechanism is set in the right-side through groove 9. The mounting block 14 is installed. The four corners of the mounting block 14 are integrally formed with open rails 18. I-frames 15 are fixedly connected between the open rails 18. An electrical box 16 is installed on the back of the I-frame 15. Electric push rods 17 are installed on the side of the closed part of the back of the open rails 18. The electric push rods 17 are powered by the battery in the electrical box 16. The four electric push rods 17 are turned on and off by a switch control circuit. The output end of the electric push rod 17 extends into the open rails 18 and is connected to the movable column 19 placed in the open rails 18. The inner side of the mounting block 14 is slotted, and the inner wall of the slot is opened with an inner wall groove 21. The slot is connected to the open rails 18. A shaft is fixedly connected between the left and right movable columns 19. The upper end of the baffle 20 is rotatably fitted on the shaft. The two ends of the rear movable shaft 22 are placed in the two inner wall grooves 21. The middle part has an annular groove. A collar 23 is fitted in the annular groove. The other side of the collar 23 is connected to the inner side of the baffle 20 through a rod.
[0015] As a preferred technical solution of this utility model, the barrier shaft mounting structure installs the barrier shaft and can adjust its position. Specifically, a barrier shaft mounting groove 6 is opened in the middle of the base plate 1. A central guide shaft 7 is fixed in the barrier shaft mounting groove 6. A central lead screw 71 is rotatably installed. The rear end of the central lead screw 71 is rotatably connected to the front end of the inner wall of the barrier shaft mounting groove 6 and is fixedly connected to the output shaft of the central motor 8 installed on the front side of the base plate 1, which extends into the barrier shaft mounting groove 6. The output shaft of the central motor 8 extends into the through hole opened on the front side of the base plate 1. The barrier shaft mounting rod 72 is movably fitted with the central guide shaft 7 and is installed in cooperation with the central lead screw 71. The upper surface is fixed with a bent barrier shaft 5.
[0016] As a preferred technical solution of this utility model, the spacing adjustment mechanism is adaptively adjusted according to the specifications of the workpiece to be processed, and the position of the mounting block is adjusted. Specifically, a bidirectional lead screw 10 is rotatably installed in the right through groove 9. The unthreaded part of the front end of the bidirectional lead screw 10 extends from the through hole on the front side of the base plate 1 and a knob 11 is fixed at the end of the extended end. There are two mounting blocks 12, which are placed in the right through groove 9 and symmetrically installed on the bidirectional lead screw 10. The mounting block 14 is fixed on the mounting block 12, and the outer wall of the knob 11 is provided with an anti-slip groove.
[0017] As a preferred technical solution of this utility model, the outer wall of the rear movable shaft 22 is in contact with the inner wall of the inner wall groove 21.
[0018] As a preferred technical solution of this utility model, the baffle 20 is made of rigid material.
[0019] The working principle of this utility model is as follows: When it is necessary to clamp a cylindrical workpiece, the electric push rods are activated by turning on the switch in the electrical box. After the electric push rods are activated, they push the movable columns to move. When the movable columns move forward, they drive the shaft between the movable columns forward. Since the upper part of the baffle and the lower end of the shaft are fitted together by the connecting collar on the movable shaft, and the movable shaft is restricted in the inner wall groove, when the electric push rods move, the upper part of the baffle moves forward and the lower end gradually rises, causing the baffle to gradually tilt. The two symmetrical baffles on the upper and lower sides form a V-shape. The two pairs of V-shaped baffles on the front and rear sides work together to clamp and stabilize the cylindrical workpiece, which is more stable than flat plate clamping. The position of the bending blocking shaft can be adjusted by starting the central motor powered by an external power source so that it contacts the workpiece to block it. Subsequently, the bending hydraulic push device is activated to extrude and bend the workpiece into shape.
[0020] Components not described in detail in this article are existing technologies.
[0021] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A novel sheet metal bending machine, comprising a base plate (1), a mounting box (2), a bending hydraulic push device (3), a bending pressure plate (4), and a bending blocking shaft (5), characterized in that: The system includes a barrier shaft mounting structure, a right-side through groove (9), a spacing adjustment mechanism, a mounting block (14), a frame (15), an electrical box (16), an electric actuator (17), an open track (18), a movable column (19), a baffle (20), an inner wall groove (21), a rear movable shaft (22), and a collar (23). A fixed mounting box (2) is made on the base plate (1), and a bending hydraulic push device (3) is installed in the mounting box (2). The output end of the bending hydraulic push device (3) extends to the front and a bending pressure plate (4) is fixed on its output end. A barrier shaft mounting structure is set in the middle of the base plate (1) to install the bending barrier shaft (5). A right-side through groove (9) is opened on the right side of the base plate (1), and a spacing adjustment mechanism is set in the right-side through groove (9) to install the mounting block (14). An open track (18) is integrally formed at the four corners of the mounting block (14). A frame (15) is fixedly connected between the tracks (18), and an electrical box (16) is installed on the back of the frame (15); electric actuators (17) are installed on the side of the closed part of the back of the open track (18), and the electric actuators (17) are powered by the battery in the electrical box (16). The four electric actuators (17) are controlled by a switch circuit to open and close; the output end of the electric actuator (17) extends into the open track (18) and is connected to the movable column (1) placed in the open track (18). 9) Connection; The mounting block (14) has a groove on its inner side, and the inner wall of the groove has an inner wall groove (21). The groove is connected to the open track (18). The left and right movable columns (19) are fixedly connected by a shaft. The upper end of the baffle (20) is rotatably mounted on the shaft. The two ends of the rear movable shaft (22) are placed in the two inner wall grooves (21). The middle part has an annular groove. The collar (23) is fitted in the annular groove. The other side of the collar (23) is connected to the inner side of the baffle (20) through a rod.
2. The novel sheet metal bending machine according to claim 1, characterized in that: The barrier shaft mounting structure includes a barrier shaft mounting groove (6), a central guide shaft (7), a central lead screw (71), a barrier shaft mounting rod (72), and a central motor (8). The base plate (1) has a barrier shaft mounting groove (6) in the middle. The central guide shaft (7) is fixed in the barrier shaft mounting groove (6). The central lead screw (71) is rotatably mounted. The rear end of the central lead screw (71) is rotatably connected to the front end of the inner wall of the barrier shaft mounting groove (6) and is fixedly connected to the output shaft of the central motor (8) installed on the front side of the base plate (1) that extends into the barrier shaft mounting groove (6). The output shaft of the central motor (8) extends into the through hole on the front side of the base plate (1). The barrier shaft mounting rod (72) is movably fitted with the central guide shaft (7) and is installed in conjunction with the central lead screw (71). The upper surface is fixed with a bent barrier shaft (5).
3. The novel sheet metal bending machine according to claim 1, characterized in that: The spacing adjustment mechanism includes a bidirectional lead screw (10), a knob (11), and a mounting block (12); the bidirectional lead screw (10) is rotatably installed in the right through groove (9), and the unthreaded part of the front end of the bidirectional lead screw (10) extends out from the through hole on the front side of the base plate (1) and the knob (11) is fixed at the end of the extended end; there are two mounting blocks (12), which are placed in the right through groove (9) and symmetrically installed on the bidirectional lead screw (10), and the mounting block (14) is fixed on the mounting block (12).
4. A novel sheet metal bending machine according to claim 3, characterized in that: The outer wall of the knob (11) is provided with anti-slip grooves.
5. A novel sheet metal bending machine according to claim 1, characterized in that: The outer wall of the rear movable shaft (22) is in contact with the inner wall of the inner wall groove (21).
6. A novel sheet metal bending machine according to claim 1, characterized in that: The baffle (20) is made of rigid material.