Multipurpose section steel bending machine

Abstract

A multipurpose profile steel bending machine comprises a workbench, the top of the workbench is slidably connected with a first shell, a sliding mechanism is arranged between the first shell and the workbench, two symmetrical second shells are arranged on one side of the first shell, and rotating shafts are rotationally connected between the upper inner wall and the lower inner wall of the first shell and the upper inner wall and the lower inner wall of the second shells correspondingly; a rotating driving assembly for rotating the rotating shaft in the second shell is arranged in the workbench, the rotating shaft is sleeved with a rotating roller, the rotating roller is provided with a first guide wheel, the two sides of the first guide wheel are provided with a second guide wheel and a third guide wheel which are in sliding connection, and a driving mechanism is arranged in the rotating roller. The positions of the second guide wheel and the third guide wheel can be flexibly adjusted according to the specification of the profile steel, the profile steel is accurately supported and guided, flange distortion is effectively reduced, the bending precision and the forming quality are improved, the device is suitable for the profile steel of various specifications, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of profile steel processing equipment, and in particular to a multi-purpose profile steel bending machine. Background Technology

[0002] I-beams, channel steel, and other structural steel sections are widely used in construction, machinery, bridges, and other industries due to their unique cross-sections (including flanges and webs) and excellent mechanical properties. Through bending operations, these steel sections can better conform to complex structural design requirements, effectively improving the stability and functionality of the structure.

[0003] However, some shortcomings have gradually emerged in the application of existing steel bending machines. On the one hand, due to the complex stress characteristics of the flange during bending, the steel is prone to flange twisting deformation during the bending process. This not only reduces bending accuracy and forming quality, making it difficult for the steel to meet assembly requirements, but may also weaken the structural strength and load-bearing capacity, leading to safety hazards. On the other hand, although some existing steel bending machines use special bending devices (such as specific bending rollers and straightening mechanisms) to deal with flange twisting, these devices are only suitable for steel of a single specification. When facing I-beams, channel steel, or steel of different sizes, they cannot be universally used due to cross-sectional differences, resulting in low applicability.

[0004] In summary, existing steel bending machines have significant shortcomings when bending I-beams, channel steel, and other steel profiles. Therefore, we propose a multi-purpose steel bending machine to address these issues. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-purpose steel bending machine. By using this device, the existing problems in the background art mentioned above can be solved.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a multi-purpose steel bending machine, comprising a workbench, a first housing slidably connected to the top of the workbench, a sliding mechanism provided between the first housing and the workbench, two second housings symmetrically arranged on one side of the first housing, each of the first and second housings having an opening on a side close to each other, a rotating shaft rotatably connected between the upper and lower inner walls of the first and second housings, a drive assembly for rotating the rotating shaft in the second housing being provided in the workbench, a rotating roller fixedly connected to the surface of the rotating shaft, a first guide wheel fixedly connected to the middle position of the surface of the rotating roller, second guide wheels symmetrically slidably connected above and below the first guide wheel, a third guide wheel symmetrically slidably connected between the two second guide wheels, and a drive mechanism for moving the second and third guide wheels being provided in the rotating roller.

[0007] Preferably, the sliding mechanism includes a slide rail disposed on the top of the worktable, a sliding seat slidably connected to the slide rail, the top of the sliding seat being fixedly connected to the first housing, a support block disposed on the top of the worktable away from the second housing, a hydraulic cylinder disposed in the support block, and the output end of the hydraulic cylinder being fixedly connected to the first housing.

[0008] Preferably, the rotary drive assembly includes a drive cavity formed inside the worktable, a rotating shaft in the second housing extends into the drive cavity, a worm gear is fixedly connected to the surface of the rotating shaft in the drive cavity, a worm is meshed with one side of the worm gear, the worm is rotatably connected to the inner walls on both sides of the drive cavity, and one end of the worm passes through the inner wall of the drive cavity and is connected to a first motor.

[0009] Preferably, the drive mechanism includes a first drive assembly for moving the second guide wheel and a second drive assembly for moving the third guide wheel.

[0010] Preferably, the first drive assembly includes a first groove formed on the surface of the rotating roller, the second guide wheel and the third guide wheel are slidably connected to the first groove, a first lead screw with double threads is rotatably connected between the inner walls of the two ends of the first groove, the surface of the first lead screw is threadedly connected to the two second guide wheels, and the surface of the first lead screw is gap-connected to the two third guide wheels, and the top end of the first lead screw passes through the inner wall of the first groove and is connected to a second motor for transmission.

[0011] Preferably, the second drive assembly includes a second groove formed on the surface of the rotating roller, the second guide wheel and the third guide wheel are slidably connected to the second groove, a second lead screw with double threads is rotatably connected between the inner walls of the two ends of the second groove, the surface of the second lead screw is threadedly connected to the two third guide wheels, and the surface of the second lead screw is gap-connected to the two second guide wheels, and the top end of the second lead screw passes through the inner wall of the second groove and is connected to a third motor for transmission.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. Improve bending accuracy and forming quality: The combination of first, second, and third guide wheels, with the positions of the second and third guide wheels precisely adjustable according to the steel profile specifications, provides extremely precise support and guidance for the flanges and webs of the steel profile. During the bending process, the first guide wheel is responsible for stabilizing the web and preventing it from bending or twisting under bending force. The second and third guide wheels apply uniform support force from both sides of the flange, effectively balancing the complex stress on the flange during bending and avoiding flange distortion caused by uneven force. This greatly improves bending accuracy and ensures that the formed steel profile is dimensionally accurate and has a regular shape.

[0014] 2. Enhanced equipment applicability: With the adjustable second and third guide wheels on the rotating roller, along with the corresponding first and second drive components, the equipment can handle various steel profiles such as I-beams, channel steel, or I-section steel of different sizes. The second and third motors are activated according to the specific specifications of the steel profile, and the spacing and position of the second and third guide wheels are adjusted to achieve effective processing of steel profiles with different cross-sectional shapes and sizes, thereby enhancing the equipment's versatility and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the positional relationship of the transfer drive components in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the transfer roller of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the transfer roller of this utility model from another perspective.

[0019] In the diagram: 1. Workbench; 2. First housing; 3. Second housing; 4. Rotary shaft; 5. Rotary drive assembly; 51. Drive cavity; 52. Worm gear; 53. Worm; 54. First motor; 6. Rotary roller; 7. First guide wheel; 8. Second guide wheel; 9. Third guide wheel; 10. Slide rail; 11. Sliding seat; 12. Support block; 13. Hydraulic cylinder; 14. First drive assembly; 141. First slide groove; 142. First lead screw; 143. Second motor; 15. Second drive assembly; 151. Second slide groove; 152. Second lead screw; 153. Third motor. Detailed Implementation

[0020] 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.

[0021] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0022] Combination Figures 1-4A multi-purpose steel bending machine includes a worktable 1, a first housing 2 slidably connected to the top of the worktable 1, a sliding mechanism between the first housing 2 and the worktable 1, two second housings 3 symmetrically arranged on the top of the worktable 1 on one side of the first housing 2, each with an opening on the side closest to the first housing 2 and the first housing 3, which together enclose the steel bending operation area. A rotating shaft 4 is rotatably connected between the upper and lower inner walls of the first housing 2 and the second housing 3. A drive assembly 5 for rotating the rotating shaft 4 in the second housing 3 is provided in the worktable 1, and a rotating roller 6 is fixedly connected to the surface of the rotating shaft 4. By activating the drive assembly 5, the rotating roller 6 is rotated, thereby bending the steel section. As the bending process deepens, a first guide wheel 7 is fixedly connected to the center of the surface of the rotating roller 6. A second guide wheel 8 is symmetrically slidably connected above and below the first guide wheel 7. A third guide wheel 9 is symmetrically slidably connected between the two second guide wheels 8. The first guide wheel 7 provides support and guidance for the web of the steel section, while the second guide wheels 8 and the third guide wheel 9 support and position the flanges of the steel section. This effectively prevents the steel section from twisting and deforming during the bending process. The rotating roller 6 is equipped with a drive mechanism to move the second guide wheels 8 and the third guide wheels 9. The drive mechanism adjusts the position of the second guide wheels 8 and the third guide wheels 9 on the rotating roller 6 to adapt to the flange and web structures of steel sections of different specifications.

[0023] The sliding mechanism includes a slide rail 10 mounted on the top of the workbench 1, a sliding seat 11 slidably connected to the slide rail 10, the top of the sliding seat 11 being fixedly connected to the first housing 2, and a support block 12 mounted on the top of the workbench 1 away from the second housing 3. A hydraulic cylinder 13 is mounted in the support block 12, and the output end of the hydraulic cylinder 13 is fixedly connected to the first housing 2. By activating the hydraulic cylinder 13, the output end of the hydraulic cylinder 13 extends and retracts, pushing the first housing 2 to slide on the slide rail 10 on the top of the workbench 1, thereby adjusting the relative position of the first housing 2 and the second housing 3.

[0024] The rotary drive assembly 5 includes a drive cavity 51 opened inside the worktable 1. A rotating shaft 4 in the second housing 3 extends into the drive cavity 51. A worm gear 52 is fixedly connected to the surface of the rotating shaft 4 in the drive cavity 51. A worm 53 is meshed with one side of the worm gear 52. The worm 53 is rotatably connected to the inner walls on both sides of the drive cavity 51. One end of the worm 53 passes through the inner wall of the drive cavity 51 and is connected to a first motor 54.

[0025] The drive mechanism includes a first drive assembly 14 that moves the second guide wheel 8 and a second drive assembly 15 that moves the third guide wheel 9. The first motor 54 is started, causing the worm 53 to rotate, thereby driving the worm wheel 52 to rotate. Since the worm wheel 52 is fixedly connected to the rotating shaft 4, the rotating shaft 4 can rotate stably.

[0026] The drive mechanism includes a first drive assembly 14 for moving the second guide wheel 8 and a second drive assembly 15 for moving the third guide wheel 9. Conductive slip rings are installed on the top inner walls of the first housing 2 and the second housing 3 to provide power for the drive mechanism.

[0027] The first drive assembly 14 includes a first groove 141 formed on the surface of the rotating roller. The second guide wheel 8 and the third guide wheel 9 are slidably connected to the first groove 141. A first lead screw 142 with double threads is rotatably connected between the inner walls of the two ends of the first groove 141. The surface of the first lead screw 142 is threadedly connected to the two second guide wheels 8, and the surface of the first lead screw 142 is gap-connected to the two third guide wheels 9. The top end of the first lead screw 142 passes through the inner wall of the first groove 141 and is connected to a second motor 143. When the second motor 143 starts and drives the first lead screw 142 to rotate, the two second guide wheels 8 will move linearly relative to or opposite to each other along the axial direction of the first lead screw 142 in the first groove 141. The third guide wheel 9 is only gap-connected to the first lead screw 142. During the rotation of the first lead screw 142, the third guide wheel 9 will not be displaced due to the threaded transmission.

[0028] The second drive assembly 15 includes a second groove 151 formed on the surface of the rotating roller. The second guide wheel 8 and the third guide wheel 9 are slidably connected to the second groove 151. A second lead screw 152 with double threads is rotatably connected between the inner walls of the two ends of the second groove 151. The surface of the second lead screw 152 is threadedly connected to the two third guide wheels 9, and the surface of the second lead screw 152 is gap-connected to the two second guide wheels 8. The top end of the second lead screw 152 passes through the inner wall of the second groove 151 and is connected to a third motor 153. The second lead screw 152 rotates under the drive of the third motor 153. The two third guide wheels 9 will move relative to each other or in opposite directions along the axial direction of the second lead screw 152 in the second groove 151. The second guide wheel 8 is gap-connected to the second lead screw 152. When the second lead screw 152 rotates, the second guide wheel 8 will not change its position due to the threaded transmission.

[0029] Working principle:

[0030] According to the specifications of the steel section to be processed, the second motor 143 is started, driving the first lead screw 142 to rotate in the first slide groove 141. Because the first lead screw 142 has double threads and is threadedly connected to the two second guide wheels 8, the second guide wheels 8 move relative to or opposite to each other along the axial direction of the lead screw in the first slide groove 141. The first lead screw 142 is only gap-connected to the third guide wheel 9, and the position of the third guide wheel 9 is not affected. Similarly, the third motor 153 is started, driving the second lead screw 152 to rotate in the second slide groove 151, causing the third guide wheel 9 to move along the axial direction of the lead screw in the second slide groove 151. The second guide wheel 8 only slides on the second lead screw 152. In this way, the positions of the second guide wheel 8 and the third guide wheel 9 on the rotating roller 6 are precisely adjusted to adapt to the flanges and webs of different steel sections, providing support and guidance for bending.

[0031] After adjusting the positions of the second guide wheel 8 and the third guide wheel 9, place one end of the steel profile flange between the second guide wheel 8 and the third guide wheel 9, with the first guide wheel 7 contacting the web. Start the first motor 54 to drive the worm gear 53 to rotate. Since the worm gear 53 meshes with the worm wheel 52, and the worm wheel 52 is fixedly connected to the rotating shaft 4 inside the second housing 3, it drives the rotating shaft 4 and the rotating roller 6 to rotate. During this process, the first guide wheel 7 stabilizes the web, while the second guide wheel 8 and the third guide wheel 9 prevent the flange from twisting.

[0032] During bending operations, the hydraulic cylinder 13 can be activated as needed. The output end of the hydraulic cylinder 13 extends and retracts to push the first housing 2 to slide on the top slide rail 10 of the worktable 1, adjusting the relative position of the first housing 2 and the second housing 3, applying force to the steel section, making the bending force more reasonable, and improving the bending effect, stability and accuracy.

[0033] 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 multi-purpose steel bending machine, comprising a workbench (1), characterized in that: The workbench (1) is slidably connected to the top of a first housing (2). A sliding mechanism is provided between the first housing (2) and the workbench (1). Two second housings (3) are symmetrically arranged on one side of the first housing (2). The first housing (2) and the second housing (3) are both provided with openings on the side close to each other. A rotating shaft (4) is rotatably connected between the upper and lower inner walls of the first housing (2) and the second housing (3). A rotating drive assembly (5) for rotating the rotating shaft (4) in the second housing (3) is provided in the workbench (1). A rotating rod (6) is fixedly connected to the surface of the rotating shaft (4). A first guide wheel (7) is fixedly connected to the middle position of the surface of the rotating rod (6). A second guide wheel (8) is symmetrically slidably connected above and below the first guide wheel (7). A third guide wheel (9) is symmetrically slidably connected between the two second guide wheels (8). A drive mechanism for moving the second guide wheel (8) and the third guide wheel (9) is provided in the rotating rod (6).

2. The multi-purpose steel bending machine according to claim 1, characterized in that: The sliding mechanism includes a slide rail (10) set on the top of the workbench (1), a sliding seat (11) slidably connected on the slide rail (10), the top of the sliding seat (11) being fixedly connected to the first housing (2), a support block (12) being provided on the side of the first housing (2) away from the second housing (3), a hydraulic cylinder (13) being provided in the support block (12), and the output end of the hydraulic cylinder (13) being fixedly connected to the first housing (2).

3. The multi-purpose steel bending machine according to claim 1, characterized in that: The rotary drive assembly (5) includes a drive cavity (51) opened inside the workbench (1), a rotating shaft (4) in the second housing (3) extends into the drive cavity (51), a worm gear (52) is fixedly connected to the surface of the rotating shaft (4) in the drive cavity (51), a worm (53) is meshed with one side of the worm gear (52), the worm (53) is rotatably connected to the inner walls on both sides of the drive cavity (51), and one end of the worm (53) is driven through the inner wall of the drive cavity (51) and connected to a first motor (54).

4. The multi-purpose steel bending machine according to claim 1, characterized in that: The drive mechanism includes a first drive assembly (14) for moving the second guide wheel (8) and a second drive assembly (15) for moving the third guide wheel (9).

5. A multi-purpose steel bending machine according to claim 4, characterized in that: The first drive assembly (14) includes a first groove (141) formed on the surface of the rotating roller. The second guide wheel (8) and the third guide wheel (9) are slidably connected to the first groove (141). A first lead screw (142) with double threads is rotatably connected between the inner walls of the two ends of the first groove (141). The surface of the first lead screw (142) is threadedly connected to the two second guide wheels (8), and the surface of the first lead screw (142) is gap-connected to the two third guide wheels (9). The top end of the first lead screw (142) passes through the inner wall of the first groove (141) and is connected to a second motor (143).

6. A multi-purpose steel bending machine according to claim 4, characterized in that: The second drive assembly (15) includes a second groove (151) formed on the surface of the rotating roller. The second guide wheel (8) and the third guide wheel (9) are slidably connected to the second groove (151). A second lead screw (152) with double threads is rotatably connected between the inner walls of the two ends of the second groove (151). The surface of the second lead screw (152) is threadedly connected to the two third guide wheels (9), and the surface of the second lead screw (152) is gap-connected to the two second guide wheels (8). The top end of the second lead screw (152) is connected to a third motor (153) through the inner wall of the second groove (151).

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