Large hydraulic bending machine for I-shaped steel

Abstract

The utility model relates to the field of bending machines, and discloses a large hydraulic bending machine for I-shaped steel, which comprises a bottom plate, rolling shafts and sliding strip seats I. The upper surface of the bottom plate is symmetrically and rotatably connected with the four rolling shafts, and the upper surface of the bottom plate is fixedly provided with the sliding strip seats at 45-degree angles corresponding to one of the rolling shafts. Sliding grooves are symmetrically formed in the two side faces of the first sliding strip base, a bending mechanism is arranged on the rolling shaft and the first sliding strip base, and a fixing and clamping mechanism is arranged on the upper surface of the bottom plate and corresponds to the front portion of the rolling shaft, I-shaped steel is clamped through the fixing and clamping mechanism from the upper direction, the lower direction, the left direction and the right direction, and uniform fixing is achieved; and the rolling cylindrical plates on the rollers are tightly attached to the shape of the I-shaped steel, shaking and displacement are reduced, abrasion is reduced, supporting is uniform, the transportation stability is improved, and it is guaranteed that the workpiece is balanced in the machining process.

Description

Technical Field

[0001] This utility model relates to the field of bending machines, specifically a large hydraulic bending machine for I-beams. Background Technology

[0002] I-beams are a common type of structural steel, widely used in construction, bridges, mining equipment, and other fields. During construction, I-beams are processed as needed, especially bent or formed. Large hydraulic bending machines, as efficient processing equipment, play a crucial role in I-beam processing. Hydraulic bending machines utilize a hydraulic system to generate powerful pressure, shaping materials such as I-beams through bending dies. This equipment adjusts the force applied to the material by controlling the extension and retraction of hydraulic cylinders, achieving processing at different angles and bending radii. Currently, most bending machines' clamping devices can only clamp from the side. Side clamping only provides unidirectional pressure and cannot evenly distribute it across the entire surface of the workpiece. During bending, as force is applied, the workpiece is prone to tilting or shifting under the influence of the side clamping force. This situation makes it impossible for the workpiece to maintain ideal stability during bending. Therefore, we propose a large hydraulic bending machine for I-beams. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a large hydraulic bending machine for I-beams, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a large hydraulic bending machine for I-beams, comprising a base plate, rollers, and a slide block seat. Four rollers are symmetrically rotatably connected to the upper surface of the base plate. A slide block seat is fixedly installed at a 45-degree angle next to one of the rollers on the upper surface of the base plate. Sliding grooves are symmetrically opened on both sides of the slide block seat. Bending mechanisms are provided on the rollers and the slide block seat. A fixing clamping mechanism is provided on the upper surface of the base plate in front of the rollers.

[0005] Preferably, the bending mechanism includes rollers, and the rollers are coaxially fixedly connected to the roller shaft. Rolling cylindrical plates are fixedly installed on the upper, middle and lower parts of the rollers respectively.

[0006] Preferably, the bending mechanism further includes a slider, a piston rod, and a hydraulic cylinder. The slider has an opening on its side, and sliding protrusions are symmetrically fixedly installed on the inner wall of the opening. The sliding protrusions of the slider engage with the sliding groove of the slide block seat, and the slider and the slide block seat are slidably connected. A rotating shaft is fixedly connected to the middle of the top surface of the slider, and a roller is rotatably connected to the rotating shaft of the slider. A hydraulic cylinder is fixedly connected to the upper surface of the base plate corresponding to the rear of the slide block seat. A piston rod is drivenly connected to the hydraulic cylinder, and one end of the piston rod protrudes from the hydraulic cylinder and is fixedly connected to the side of the slider.

[0007] Preferably, the fixing and clamping mechanism includes a support plate, a steel passage, two slide blocks, and gears. The support plate has a steel passage extending to the other side at the center of its surface. The steel passage is rectangular. Four slide blocks are symmetrically fixedly installed on the support plate on both sides corresponding to the steel passage. Sliding grooves are symmetrically opened on both sides of the slide blocks. A rotating protrusion is fixedly connected to the middle of every two adjacent slide blocks on the support plate. Gears are rotatably connected to the two rotating protrusions of the support plate on the same axis.

[0008] Preferably, the fixing and clamping mechanism further includes a second hydraulic cylinder, a first clamping plate, a roller, a rack, a second piston rod, a second slider, and a second clamping plate. The second slider has an opening on its side, and sliding protrusions are symmetrically fixedly installed on the inner wall of the opening. The sliding protrusions of the second slider engage with the sliding grooves of the second slide block seat, and the second slider and the second slide block seat are slidably connected. A rack is fixedly connected to the side of the second slider, and the rack meshes with the gear. Clamping plates are fixedly connected to the top surfaces of the two second sliders located on both sides of the steel passage and close to the steel passage. Two clamping plates are fixedly connected to the top surfaces of the two sliders passing through the steel opening. Openings are provided on the opposing surfaces of the clamping plates, and symmetrical rotating holes are provided on the inner walls of the openings of the clamping plates. Rollers are rotatably connected coaxially within the rotating holes of the clamping plates. A connecting plate is fixedly installed on the long axis side of the clamping plate. A hydraulic cylinder is fixedly installed on the upper surface of the support plate, corresponding to the long axis side of the clamping plate. A piston rod is drivenly connected to the hydraulic cylinder, and one end of the piston rod protrudes from the hydraulic cylinder and is fixedly connected to the connecting plate of the clamping plate.

[0009] Preferably, four support columns are fixedly connected at the four corners of the support plate, and another set of fixing and clamping mechanisms is set at a 90-degree angle on the top surface of the support columns.

[0010] Compared with the prior art, this utility model provides a large hydraulic bending machine for I-beams, which has the following advantages:

[0011] This large hydraulic bending machine for I-beams features a clamping mechanism that can simultaneously clamp the I-beam from four directions: top, bottom, left, and right. By applying clamping force from all four directions, the I-beam achieves a more uniform fixation effect, avoiding the uneven pressure caused by lateral clamping. This allows the workpiece to better resist external forces during the bending process, preventing twisting and deformation caused by uneven force. In addition, I-beams are prone to instability due to changes in the center of gravity during bending. The four-way clamping mechanism provides stronger support during bending, stabilizing the workpiece's position and ensuring its balance during processing.

[0012] This H-beam is bent using a large hydraulic bending machine. The rolling cylindrical plates on the rollers closely conform to the shape of the H-beam, providing better support and reducing swaying and displacement during transportation. This helps improve transportation stability and reduces safety risks caused by swaying. The rolling cylindrical plates conforming to the shape of the H-beam increase and make the contact area between the H-beam and the rollers more uniform, reducing local pressure between the H-beam surface and the rollers, thus reducing wear. In addition, the more uniform support provided by the rolling cylindrical plates on the rollers effectively prevents deformation of the H-beam due to uneven stress during transportation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the bending mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the fixing and clamping mechanism of this utility model;

[0016] Figure 4 This is an exploded view of the fixing and clamping mechanism of this utility model.

[0017] In the diagram: 1. Base plate; 2. Roller; 3. Roller; 4. Slide block seat 1; 5. Slider 1; 6. Piston rod 1; 7. Hydraulic cylinder 1; 8. Support plate; 9. Through-hole; 10. Hydraulic cylinder 2; 11. Support column; 12. Clamping plate 1; 13. Slide block seat 2; 14. Roller; 15. Gear; 16. Rack; 17. Piston rod 2; 18. Slider 2; 19. Clamping plate 2. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 A large hydraulic bending machine for I-beams includes a base plate 1, rollers 2, and a slide block seat 4. Four rollers 2 are symmetrically rotatably connected to the upper surface of the base plate 1. A slide block seat 4 is fixedly installed at a 45-degree angle to one of the rollers 2 on the upper surface of the base plate 1. Sliding grooves are symmetrically opened on both sides of the slide block seat 4. Bending mechanisms are provided on the rollers 2 and the slide block seat 4. A fixed clamping mechanism is provided on the upper surface of the base plate 1 in front of the rollers 2. When clamping the I-beam, the fixed clamping mechanism can clamp it simultaneously from four directions: top, bottom, left, and right. By applying clamping force from all four directions, the I-beam can achieve a more uniform fixing effect, avoiding the uneven pressure caused by side clamping. This allows the workpiece to better resist external forces during the entire bending process, avoiding twisting and deformation caused by uneven force. In addition, the I-beam is prone to instability due to changes in the center of gravity during bending. The four-way clamping mechanism can provide stronger support during bending, stabilize the position of the workpiece, and ensure the balance of the workpiece during processing.

[0020] Furthermore, the bending mechanism includes rollers 3, which are coaxially fixedly connected to the rollers 2. Rolling cylindrical plates are fixedly installed on the upper, middle, and lower parts of the rollers 3, respectively. The rolling cylindrical plates on the rollers 3 closely conform to the shape of the I-beam, which can better support the I-beam and reduce the swaying and displacement of the I-beam during transportation. This helps to improve the stability of transportation and reduce the safety risks caused by swaying. The rolling cylindrical plates conform to the shape of the I-beam, which increases and makes the contact area between the I-beam and the rollers 3 more uniform. This reduces the local pressure between the surface of the I-beam and the rollers 3, thereby reducing the degree of wear. In addition, the rolling cylindrical plates on the rollers 3 provide more uniform support for the I-beam, which can effectively prevent the I-beam from deforming due to uneven force during transportation.

[0021] Furthermore, the bending mechanism also includes a slider 5, a piston rod 6, and a hydraulic cylinder 7. The slider 5 has an opening on its side, and sliding protrusions are symmetrically fixedly installed on the inner wall of the opening. The sliding protrusions of the slider 5 engage with the sliding groove of the slide block seat 4, and the slider 5 and the slide block seat 4 are slidably connected. A rotating shaft is fixedly connected to the middle of the top surface of the slider 5, and a roller 3 is coaxially rotatably connected to the rotating shaft of the slider 5. A hydraulic cylinder 7 is fixedly connected to the upper surface of the base plate 1 corresponding to the rear of the slide block seat 4. The hydraulic cylinder 7 is connected to a piston rod 6, which protrudes from one end of the hydraulic cylinder 7 and is fixedly connected to the side of the slider 5. The hydraulic cylinder 7 drives the piston rod 6 to extend and retract, pushing the slider 5 to slide along the slide block seat 4. Since a roller 3 rotates coaxially on the roller of the slider 7, the I-beam bends around the contact point with the roller 3 under the action of the roller 3. By controlling the extension and retraction and pressure of the hydraulic cylinder 7, bending processing with different angles and bending radii can be achieved.

[0022] Furthermore, the fixed clamping mechanism includes a support plate 8, a steel passage 9, a slide block seat 13, and a gear 15. The support plate 8 has a steel passage 9 extending to the other side at the center of its surface. The steel passage 9 is rectangular. Four slide blocks 13 are symmetrically fixedly installed on the support plate 8 on both sides corresponding to the steel passage 9. Sliding grooves are symmetrically opened on both sides of the slide blocks 13. A rotating protrusion is fixedly connected to the middle of every two adjacent slide blocks 13 on the support plate 8. A gear 15 is rotatably connected to the two rotating protrusions of the support plate 8 on the same axis.

[0023] Furthermore, the fixing and clamping mechanism also includes a second hydraulic cylinder 10, a clamping plate 12, a roller 14, a rack 16, a second piston rod 17, a second slider 18, and a second clamping plate 19. The second slider 18 has an opening on its side, and sliding protrusions are symmetrically fixedly installed on the inner wall of the opening. The sliding protrusions of the second slider 18 engage with the sliding grooves of the second slide block seat 13, and the second slider 18 and the second slide block seat 13 are slidably connected. A rack 16 is fixedly connected to the side of the second slider 18, and the rack 16 meshes with a gear 15. Clamping plates 12 are fixedly connected to the top surfaces of the two second sliders 18 located on both sides of the steel passage 9 and close to the steel passage 9. Two clamping plates 19 are fixedly connected to the top surfaces of the two sliders 18 away from the steel opening 9. The clamping plates 12 and 19 have openings on their opposite surfaces, and symmetrical rotating holes are formed on the inner walls of the openings of the clamping plates 12 and 19. Rollers 14 are rotatably connected to the rotating holes of the clamping plates 12 and 19. A connecting plate is fixedly installed on the long axis side of the clamping plate 19. A hydraulic cylinder 10 is fixedly installed on the upper surface of the support plate 8 next to the long axis side of the clamping plate 19. A piston rod 17 is drivenly connected to the hydraulic cylinder 10. The piston rod 17 protrudes from one end of the hydraulic cylinder 10 and is fixedly connected to the connecting plate of the clamping plate 19.

[0024] Furthermore, four support columns 11 are fixedly connected to the four corners of the support plate 8. Another set of fixed clamping mechanisms is set at a 90-degree angle on the top surface of the support columns 11. When the I-beam is passed through the steel opening 9, the hydraulic cylinder 2 10 is activated. The hydraulic cylinder 2 10 drives the piston rod 2 17 to extend and retract, causing the clamping plate 2 19 to slide along the slide block seat 2 13. Through the meshing transmission of the gear 15 and the rack 16, the clamping plate 1 12 also moves relative to it. The clamping plate 1 12 and the clamping plate 2 19 approach the I-beam from the left and right sides. The rollers 14 on their opposite surfaces can roll when they contact the I-beam, which can not only assist in clamping but also avoid scratching the workpiece, thus achieving clamping of the I-beam in the left and right directions. At the same time, another set of fixed clamping mechanisms above (supported above the support plate 8 by the support columns 11) clamps the I-beam from the top and bottom in the same way, so that the I-beam is firmly fixed in the four directions of top, bottom, left and right, avoiding twisting deformation caused by uneven force and providing stable support during bending.

[0025] Working principle: The I-beam is passed through the steel opening 9. Hydraulic cylinder 2 10 is activated, driving piston rod 2 17 to extend and retract, causing clamping plate 2 19 to slide along slide block 2 13. Through the meshing transmission of gear 15 and rack 16, clamping plate 1 12 also moves relative to it. Clamping plates 1 12 and 2 19 approach the I-beam from the left and right sides. The rollers 14 on their opposing surfaces roll upon contact with the I-beam, assisting in clamping while preventing scratches on the workpiece, thus achieving lateral clamping of the I-beam. Simultaneously, another set of fixed clamping mechanisms above (supported above support plate 8 by support column 11) clamps the I-beam from the top and bottom in the same manner, thereby clamping the I-beam in all four directions. All directions are firmly fixed to avoid twisting deformation caused by uneven force, providing stable support during bending. Through the rolling of roller 14, the I-beam is transported to roller 3. The rolling cylindrical plate on roller 3 fits tightly against the I-beam. During transportation, the rolling cylindrical plate effectively supports the I-beam, reducing swaying and displacement, ensuring transportation stability and reducing wear. Hydraulic cylinder 7 drives piston rod 6 to extend and retract, pushing slider 5 to slide along slide block seat 4. Since roller 3 rotates coaxially on the roller of slider 1, under the action of roller 3, the I-beam bends around the contact point with roller 3. By controlling the extension and retraction and pressure of hydraulic cylinder 7, bending processing with different angles and bending radii can be achieved.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large hydraulic bending machine for I-beams, comprising a base plate (1), rollers (2), and a slide block seat (4), wherein four rollers (2) are symmetrically rotatably connected to the upper surface of the base plate (1), and a slide block seat (4) is fixedly installed at a 45-degree angle to one of the rollers (2) on the upper surface of the base plate (1), and sliding grooves are symmetrically provided on both sides of the slide block seat (4), characterized in that: The roller (2) and the slide block (4) are provided with bending mechanisms, and the upper surface of the base plate (1) is provided with a fixing clamping mechanism corresponding to the front of the roller (2).

2. The large hydraulic bending machine for I-beams according to claim 1, characterized in that: The bending mechanism includes a roller (3), and the roller (3) is coaxially fixedly connected to the roller (2). Rolling cylindrical plates are fixedly installed on the upper, middle and lower parts of the roller (3).

3. A large hydraulic bending machine for I-beams according to claim 1, characterized in that: The bending mechanism also includes a slider (5), a piston rod (6), and a hydraulic cylinder (7). The slider (5) has an opening on its side. Sliding protrusions are symmetrically fixed on the inner wall of the opening of the slider (5). The sliding protrusions of the slider (5) are engaged with the sliding groove of the slide block seat (4). The slider (5) and the slide block seat (4) are slidably connected. A rotating shaft is fixedly connected to the middle of the top surface of the slider (5). A roller (3) is coaxially rotatably connected to the rotating shaft of the slider (5). A hydraulic cylinder (7) is fixedly connected to the upper surface of the base plate (1) corresponding to the rear of the slide block seat (4). A piston rod (6) is drivenly connected to the hydraulic cylinder (7). The piston rod (6) protrudes from one end of the hydraulic cylinder (7) and is fixedly connected to the side of the slider (5).

4. A large hydraulic bending machine for I-beams according to claim 1, characterized in that: The fixed clamping mechanism includes a support plate (8), a steel passage (9), a second slide block (13), and a gear (15). The support plate (8) has a steel passage (9) extending to the other side at the center of its surface. The steel passage (9) is rectangular. Four second slide blocks (13) are symmetrically fixedly installed on the surface of the support plate (8) on both sides of the steel passage (9). Sliding grooves are symmetrically opened on both sides of the second slide block (13). A rotating protrusion is fixedly connected to the middle of every two adjacent second slide blocks (13) on the surface of the support plate (8). A gear (15) is rotatably connected to the two rotating protrusions of the support plate (8) on the same axis.

5. A large hydraulic bending machine for I-beams according to claim 4, characterized in that: The fixed clamping mechanism also includes a second hydraulic cylinder (10), a first clamping plate (12), a roller (14), a rack (16), a second piston rod (17), a second slider (18), and a second clamping plate (19). The second slider (18) has an opening on its side. Sliding protrusions are symmetrically fixedly installed on the inner wall of the opening of the second slider (18). The sliding protrusions of the second slider (18) are engaged with the sliding groove of the second slide block seat (13), and the second slider (18) and the second slide block seat (13) are slidably connected. A rack (16) is fixedly connected to the side of the second slider (18). The rack (16) is meshed with the gear (15). The first clamping plate (12) is fixedly connected to the top surface of the two second sliders (18) located on both sides of the steel passage (9) and close to the steel passage (9). A clamping plate (19) is fixedly connected to the top surface of the two sliders (18) away from the steel passage (9). An opening is provided on the opposite surface of the clamping plate (12) and the clamping plate (19), and a rotating hole is symmetrically provided on the inner wall of the opening of the clamping plate (12) and the clamping plate (19). A roller (14) is rotatably connected to the rotating hole of the clamping plate (12) and the clamping plate (19). A connecting plate is fixedly installed on the long axis side of the clamping plate (19). A hydraulic cylinder (10) is fixedly installed on the upper surface of the support plate (8) next to the long axis side of the clamping plate (19). A piston rod (17) is connected to the hydraulic cylinder (10) through transmission. The piston rod (17) protrudes from one end of the hydraulic cylinder (10) and is fixedly connected to the connecting plate of the clamping plate (19).

6. A large hydraulic bending machine for I-beams according to claim 4, characterized in that: Four support columns (11) are fixedly connected at the four corners of the support plate (8), and another set of fixed clamping mechanisms is set at a 90-degree angle on the top surface of the support columns (11).

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