Adjustable steel structure bending device
The adjustable bending and clamping mechanism solves the adaptability problem caused by the fixed mold of the existing steel structure bending machine, and realizes stable bending and clamping of steel pipes of different diameters, thereby improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑州蔚蓝钢结构工程有限公司
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-14
AI Technical Summary
The existing steel structure bending machine has a fixed mold and clamping distance, which makes it difficult to adapt to steel pipe parts of different diameters. This leads to frequent mold changes, increases operational complexity, and reduces production efficiency.
An adjustable steel structure bending device was designed. Through the adjustable bending mechanism and clamping mechanism, stable bending and clamping of steel pipes of different diameters can be achieved. It includes an adjustable positioning shaft, a Y-shaped tie rod, a positioning pulley and an adjusting bolt to ensure that the distance between the bending pulley and the positioning pulley is matched. The clamping mechanism achieves symmetrical clamping by adjusting the screw and handwheel.
It improves the versatility and processing accuracy of the device, ensures a smooth bending process, reduces friction and scratches, simplifies the operation process, and enhances production efficiency and the stability of processed parts.
Smart Images
Figure CN224487265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure processing technology, and in particular to an adjustable steel structure bending device. Background Technology
[0002] Steel structures are engineering structures assembled from steel plates, structural steel sections, or steel pipes through welding, bolting, and other methods. They are characterized by high strength, light weight, and good toughness. In practical applications, steel structures need to be processed into different shapes according to design requirements. Bending is a common processing procedure, changing the shape of the steel to meet structural assembly needs. Different scenarios have significantly different requirements for the size and shape of steel structures. For example, structural steel sections in building frames need to be bent into specific angles, and steel plates in mechanical components need to be bent into irregular shapes. This places diverse demands on the adaptability of processing equipment.
[0003] Steel structure bending equipment is a key piece of equipment for processing steel structures. Its main function is to use mechanical force to induce plastic deformation in steel, forming a preset bending angle or shape. Pressure is applied using bending components to ensure that the bending accuracy meets design standards. In mass production, bending equipment can guarantee the consistency of similar steel structures, reduce errors from manual operation, and its continuous operation capability can improve processing efficiency and shorten the production cycle.
[0004] Existing steel structure bending machines use fixed bending dies and clamping components to apply pressure to steel to achieve bending, which to some extent avoids the problems of low efficiency and poor precision associated with manual bending. However, the bending dies and clamping distances of traditional bending machines are mostly fixed. If processing steel pipe parts of different diameters, the dies need to be replaced and recalibrated. Their transmission components use rigid connections, which limit the adjustment range. This means that the equipment can only adapt to the same type of workpiece. When changing specifications, the machine needs to be stopped for adjustment, which not only increases the complexity of operation but also reduces production efficiency, making it difficult to meet the diverse needs of steel structure processing. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an adjustable steel structure bending device, which aims to improve the existing technology that requires changing molds and recalibrating when processing steel pipe parts of different diameters, which not only increases the complexity of operation but also reduces production efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable steel structure bending device, comprising an operating table and a workpiece, wherein bending mechanisms are provided on the left and right ends of the top front side of the operating table, the bending mechanisms being used to bend workpieces of different diameters, and clamping mechanisms are provided on the left and right ends of the top rear side of the operating table, the clamping mechanisms being used to clamp and fix workpieces of different diameters;
[0007] The bending mechanism includes two fixed discs, which are respectively fixedly connected to the left and right ends of the top front side of the operating table. A positioning shaft is threadedly connected to the top of each of the two fixed discs. A Y-shaped pull rod is rotatably connected to the outside of each of the two positioning shafts. A positioning pulley is provided at the inner and outer ends of each of the two Y-shaped pull rods. The two positioning pulleys are respectively sleeved on the outer middle of the two positioning shafts. A bending pulley is provided inside each of the two Y-shaped pull rods. Adjustment grooves are provided at the top and bottom of each of the two Y-shaped pull rods. Adjustment bolts pass through the interior of each of the two adjustment grooves. The two bending pulleys are rotatably connected to the outer middle of each of the two adjustment bolts. Adjustment nuts are threadedly connected to the ends of each of the two adjustment bolts. Positioning pins are engaged on the outer sides of each of the two positioning pulleys. The bottom ends of the two positioning pins are engaged with the tops of the two fixed discs.
[0008] As a further description of the above technical solution:
[0009] The clamping mechanism includes two L-shaped fixing blocks, which are respectively fixedly connected to the left and right ends of the top rear side of the operating table. Each of the two L-shaped fixing blocks has a sliding groove inside, and a clamping block is slidably connected inside each of the two sliding grooves. Bearings are fixedly connected to the left and right sides of the two sliding grooves. Adjusting screws are fixedly connected inside the two bearings on the left and the two bearings on the right. The two clamping blocks are respectively threaded to the outside of the two adjusting screws. Handwheels are fixedly connected to the outer ends of the two adjusting screws.
[0010] As a further description of the above technical solution:
[0011] The operating table is fixedly connected to diagonal braces on both the left and right rear sides. Both diagonal braces adopt an eight-shaped structure, and positioning cylinders are fixedly connected to the top of both diagonal braces. The two processing parts pass through the interior of the two positioning cylinders respectively.
[0012] As a further description of the above technical solution:
[0013] A power panel is fixedly connected to the center of the front side of the control panel, and multiple power sockets are fixedly connected to the front side of the power panel.
[0014] As a further description of the above technical solution:
[0015] A perforated plate is fixedly connected to the upper front side of the operating table, and the outer side of the perforated plate has a porous structure.
[0016] As a further description of the above technical solution:
[0017] A rain shelter is fixedly connected to the top of the operating table, and the rain shelter has a triangular shape.
[0018] As a further description of the above technical solution:
[0019] Storage drawers are fixedly connected to the left and right ends of the front side of the operating table, and the outer sides of the two storage drawers are coated with waterproof paint.
[0020] As a further description of the above technical solution:
[0021] The bottom left and right ends of the operating table are fixedly connected with mounting feet, and bolt holes are opened at the front and rear ends of the top of the two mounting feet.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by pulling the Y-shaped pull rod, adjusting the bolt through the adjusting groove, and adjusting the distance between the bending pulley and the positioning pulley, the bending pulley rotates with the workpiece, realizing stable bending of workpieces of different diameters, avoiding surface scratches, ensuring symmetrical accuracy, improving the versatility of the device, ensuring a smooth bending process, and ensuring accurate force direction.
[0024] 2. In this utility model, the handwheel is rotated to drive the adjusting screw to rotate inside the bearing, so that the clamping block slides along the slide groove to adjust the spacing. After the workpiece is placed in, the clamping block moves inward to clamp, and the thread self-locking keeps it stable. The symmetrical L-shaped fixing block ensures that the workpiece is in the center position, realizing stable clamping of workpieces of different diameters, uniform clamping force to prevent deformation, simple operation, and the bending mechanism ensures accurate processing position, improving the overall structural rigidity and processing accuracy. Attached Figure Description
[0025] Figure 1 This is a perspective view of an adjustable steel structure bending device proposed in this utility model;
[0026] Figure 2 This is a front view of an adjustable steel structure bending device proposed in this utility model;
[0027] Figure 3 This is a rear view of an adjustable steel structure bending device proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the bending mechanism in an adjustable steel structure bending device proposed in this utility model;
[0029] Figure 5 This is a partial structural breakdown diagram of the bending mechanism in an adjustable steel structure bending device proposed in this utility model.
[0030] Figure 6 This is a cross-sectional view of the clamping mechanism in an adjustable steel structure bending device proposed in this utility model.
[0031] Legend:
[0032] 1. Operating table; 2. Processed parts; 3. Bending mechanism; 31. Fixed plate; 32. Positioning shaft; 33. Y-shaped tie rod; 34. Positioning pulley; 35. Bending pulley; 36. Adjusting groove; 37. Adjusting bolt; 38. Adjusting nut; 39. Positioning pin; 4. Clamping mechanism; 41. L-shaped fixing block; 42. Slide groove; 43. Clamping block; 44. Bearing; 45. Adjusting screw; 46. Handwheel; 5. Diagonal brace; 6. Positioning cylinder; 7. Power panel; 8. Power socket; 9. Mesh plate; 10. Rainproof canopy; 11. Storage drawer; 12. Mounting feet; 13. Bolt holes. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0034] Reference Figure 1 , Figure 4 and Figure 5 An embodiment of this utility model is provided: an adjustable steel structure bending device, including an operating table 1 and a workpiece 2. The top front left and right ends of the operating table 1 are provided with bending mechanisms 3, which are used to bend workpieces 2 of different diameters. The top rear left and right ends of the operating table 1 are provided with clamping mechanisms 4, which are used to clamp and fix workpieces 2 of different diameters.
[0035] The bending mechanism 3 includes two fixed plates 31, which are fixedly connected to the left and right ends of the top front side of the operating table 1, respectively. The top of each fixed plate 31 is threaded with a positioning shaft 32. The outside of each positioning shaft 32 is rotatably connected with a Y-shaped tie rod 33. The inner and outer ends of each Y-shaped tie rod 33 are provided with positioning pulleys 34. The two positioning pulleys 34 are respectively sleeved on the middle of the outer side of the two positioning shafts 32. The inside of each Y-shaped tie rod 33 is provided with a bending pulley 35. The top and bottom of each Y-shaped tie rod 33 are provided with adjustment grooves 36. The inside of each adjustment groove 36 is provided with an adjustment bolt 37. The two bending pulleys 35 are rotatably connected to the middle of the outer side of the two adjustment bolts 37. The ends of each adjustment bolt 37 are threaded with adjustment nuts 38. The outer side of each positioning pulley 34 is engaged with a positioning pin 39. The bottom ends of the two positioning pins 39 are engaged with the top of the two fixed plates 31, respectively.
[0036] Specifically, the threaded connection between the positioning shaft 32 and the fixed plate 31 allows the height of the positioning shaft 32 extending out of the fixed plate 31 to be changed by rotating the positioning shaft 32, thereby driving the Y-shaped tie rod 33 to move up and down as a whole, thereby adjusting the vertical distance between the Y-shaped tie rod 33 and the operating table 1; when the diameter of the workpiece 2 is large, the positioning shaft 32 is rotated upward to increase the height, leaving enough space for the workpiece 2; when the diameter of the workpiece 2 is small, the positioning shaft 32 is rotated downward to reduce the height, ensuring that the bending pulley 35 and the positioning pulley 34 can fit against the surface of the workpiece 2.
[0037] The positioning pulley 34 is sleeved on the outside of the positioning shaft 32 and moves synchronously with the height change of the positioning shaft 32. Its rotational characteristics can reduce the frictional resistance when the Y-shaped tie rod 33 rotates around the positioning shaft 32, so that the Y-shaped tie rod 33 can adaptively adjust its angle according to the shape of the workpiece 2, ensuring the contact stability with workpieces 2 of different diameters. The positioning pin 39 is engaged on the outside of the positioning pulley 34 and its bottom end is engaged with the fixing plate 31, which can limit the radial displacement of the positioning pulley 34, prevent the Y-shaped tie rod 33 from deviating when subjected to force, and ensure the accurate direction of the bending force applied to workpieces 2 of different diameters.
[0038] The adjusting bolt 37 passes through the adjusting groove 36. By tightening the adjusting nut 38, the adjusting bolt 37 can be fixed at any position in the adjusting groove 36, thereby changing the position of the bending pulley 35 inside the Y-shaped tie rod 33. For the workpiece 2 with a larger diameter, moving the adjusting bolt 37 outward increases the distance between the bending pulley 35 and the positioning pulley 34. For the workpiece 2 with a smaller diameter, moving the adjusting bolt 37 inward decreases the distance, so that the bending channel formed by the two always matches the diameter of the workpiece 2.
[0039] The rotatable connection between the bending pulley 35 and the adjusting bolt 37 allows it to rotate synchronously with the movement of the workpiece 2, reducing contact friction and preventing surface scratches regardless of the diameter of the workpiece 2. The structure of the Y-shaped tie rod 33 provides stable support for the bending pulley 35 and the positioning pulley 34, and its rotatable connection with the positioning shaft 32 allows it to adjust its posture according to the diameter of the workpiece 2, ensuring a smooth bending process for workpieces 2 of different diameters.
[0040] Two bending mechanisms 3 are symmetrically distributed. By synchronously adjusting the height of the positioning shafts 32 on both sides and the position of the adjusting bolts 37, the bending channels on both sides can be adapted to the diameter of the workpiece 2 at the same time, ensuring the symmetrical bending accuracy of workpieces 2 with different diameters. The combination of adjusting the height of the positioning shafts 32 and adjusting the position of the adjusting bolts 37 enables the bending mechanism 3 to flexibly adapt to workpieces 2 with various diameters, improving the versatility of the device.
[0041] Reference Figure 1 and Figure 6The clamping mechanism 4 includes two L-shaped fixing blocks 41, which are fixedly connected to the left and right ends of the top rear side of the operating table 1, respectively. Each of the two L-shaped fixing blocks 41 has a sliding groove 42 inside, and a clamping block 43 is slidably connected inside the two sliding grooves 42. Bearings 44 are fixedly connected to the left and right sides of the two sliding grooves 42. Adjusting screws 45 are fixedly connected inside the two left bearings 44 and the two right bearings 44. The two clamping blocks 43 are threaded to the outside of the two adjusting screws 45, and handwheels 46 are fixedly connected to the outer ends of the two adjusting screws 45.
[0042] Specifically, when the handwheel 46 is rotated under force, it drives the adjusting screw 45 to rotate synchronously inside the bearing 44; the fixed connection between the bearing 44 and the adjusting screw 45 provides a stable rotational support for the adjusting screw 45, ensuring that its axial position remains unchanged during rotation, laying a stable foundation for subsequent power transmission; the threaded connection between the clamping block 43 and the adjusting screw 45 converts the rotational motion of the adjusting screw 45 into the linear displacement of the clamping block 43 along the slide groove 42, thereby realizing the adjustment of the clamping position;
[0043] The slide groove 42 provides a rigid constraint on the sliding trajectory of the clamping block 43, limiting the clamping block 43 to move only in the horizontal direction. This prevents the clamping block 43 from shifting or tilting during clamping and ensures that the contact surface between the clamping block 43 and the workpiece 2 is parallel. When the diameter of the workpiece 2 is large, the handwheel 46 is rotated in the opposite direction, and the adjusting screw 45 drives the clamping block 43 to move outward along the slide groove 42, increasing the distance between the two clamping blocks 43. When the diameter of the workpiece 2 is small, the handwheel 46 is rotated in the forward direction, and the clamping block 43 moves inward, reducing the distance to accommodate the clamping requirements of workpieces 2 with different diameters.
[0044] Two L-shaped fixing blocks 41 are symmetrically distributed. By operating the handwheels 46 on both sides simultaneously, the clamping blocks 43 on both sides can be moved inward or outward at the same time, ensuring that the workpiece 2 is always in the clamping center position and avoiding the impact of clamping offset on bending accuracy. When the workpiece 2 is placed between the two clamping blocks 43, the handwheels 46 are continuously rotated to move the clamping blocks 43 inward until the clamping blocks 43 are in close contact with the surface of the workpiece 2. The workpiece 2 is fixed by the friction between the contact surfaces.
[0045] The self-locking characteristic of the adjusting screw 45 can keep the clamping block 43 in a stable position after it reaches the preset position, preventing the clamping force from weakening due to vibration during processing, and ensuring that the workpiece 2 does not loosen during bending; the clamping surface of the clamping block 43 adapts to the change of the diameter of the workpiece 2, ensuring that the clamping force is evenly distributed on the surface of the workpiece 2, and avoiding excessive local pressure that could cause deformation of the workpiece 2.
[0046] The fixed connection between bearing 44 and slide 42 ensures the relative position stability of adjusting screw 45 and clamping block 43, and improves the overall structural rigidity of clamping mechanism 4; the handwheel 46 makes the adjustment of clamping distance simple and can be completed without the aid of additional tools; through the synergistic effect of the above components, clamping mechanism 4 can stably clamp workpieces 2 of different diameters, providing reliable positional guarantee for bending processing, and improving the overall processing accuracy of the device in conjunction with bending mechanism 3.
[0047] Reference Figure 1 , Figure 2 and Figure 3 The control panel 1 has two diagonal braces 5 fixedly connected to the left and right rear sides. Both diagonal braces 5 have a figure-eight structure, and the top of each diagonal brace 5 is fixedly connected to a positioning cylinder 6. The two processed parts 2 pass through the interior of the two positioning cylinders 6 respectively. The control panel 7 is fixedly connected to the middle of the front side. Multiple power sockets 8 are fixedly connected to the front of the power panel 7. The upper middle of the front side of the control panel 1 is fixedly connected to a perforated plate 9. The outer side of the perforated plate 9 has a multi-hole structure. The top of the control panel 1 is fixedly connected to a rain shelter 10. The rain shelter 10 has a triangular design. The left and right front sides of the control panel 1 are fixedly connected to storage drawers 11. The outer side of each storage drawer 11 is coated with waterproof paint. The left and right bottom sides of the control panel 1 are fixedly connected to mounting feet 12. Bolt holes 13 are opened at the front and rear ends of the top of each mounting foot 12.
[0048] Specifically, the top of the figure-eight shaped diagonal brace 5 fixed at the left and right ends of the rear side of the operating table 1 is connected to the positioning cylinder 6, and the workpiece 2 passes through the interior of the positioning cylinder 6; the figure-eight shaped diagonal brace 5 distributes the force through the inclined support on both sides, enhances the stability of the connection with the operating table 1, and provides reliable support for the positioning cylinder 6; the positioning cylinder 6 constrains the workpiece 2 that enters the clamping area, so that it moves along the preset path, avoids the displacement caused by the deflection of the workpiece 2 itself, and ensures the accuracy of the clamping position;
[0049] The power panel 7, fixed in the center of the front side of the control panel 1, is connected to multiple power sockets 8. The power sockets 8 are connected to the power system lines of the device, and provide power support for the operation of the device by connecting to an external power source. The power panel 7 centrally arranges the power sockets 8, which makes it easy for operators to connect or disconnect the power supply and simplifies the power supply management process.
[0050] The perforated plate 9 fixed on the upper front side of the operating table 1 has a multi-hole structure and can be used to hang or place auxiliary tools required for bending processing. The tools are fixed by hooks that fit into the holes of the perforated plate 9. The installation position of the perforated plate 9 is close to the processing area, which makes it convenient for operators to access the tools at any time and reduces the time spent on picking up and putting down the tools.
[0051] The triangular rainproof canopy 10 fixed at the top of the operating table 1 has a triangular design that enhances its structural strength by dispersing stress. It can block rainwater or debris from falling into the processing area, prevent rainwater from contacting the device components and affecting their normal operation, and protect the processed parts 2 from contamination.
[0052] The storage drawers 11 fixed on the left and right sides of the front of the workbench 1 are coated with waterproof paint on the outside, which can be used to store small parts or waste generated during the processing; the waterproof paint prevents moisture in the processing environment from entering the interior of the storage drawers 11, preventing parts from rusting or waste from getting damp.
[0053] The mounting feet 12, which are fixed at the bottom left and right ends of the operating table 1, have bolt holes 13 at the top front and rear ends. The mounting feet 12 are connected to the ground fixing device by bolts passing through the bolt holes 13, which restricts the displacement of the operating table 1 during the processing. The mounting feet 12 increase the contact area between the operating table 1 and the ground, lower the center of gravity of the device, and reduce the vibration generated during bending operations.
[0054] Working principle: Before processing, the parameters of the bending mechanism 3 need to be adjusted according to the diameter of the workpiece 2; the positioning shaft 32 on the fixed plate 31 is rotated to change its extension height, thereby driving the Y-shaped tie rod 33 to move up and down. For workpieces 2 with larger diameters, the distance needs to be increased by adjusting upwards, while for smaller diameters, the distance needs to be decreased by adjusting downwards; at the same time, the adjusting bolt 37 in the adjusting groove 36 is moved to change the distance between the bending pulley 35 and the positioning pulley 34, and the adjusting nut 38 is tightened to fix the position, so that the bending channel formed by the two matches the diameter of the workpiece 2; the positioning pin 39 engages the positioning pulley 34 and the fixed plate 31 to ensure that the Y-shaped tie rod 33 is under stable force.
[0055] Synchronously adjust the clamping mechanism 4, rotate the handwheel 46 on the outside of the L-shaped fixing block 41, drive the adjusting screw 45 to rotate in the bearing 44, so that the clamping block 43 slides along the slide groove 42 to expand the gap; pass one end of the workpiece 2 through the positioning cylinder 6 at the top of the inclined support rod 5, and after being guided by the positioning cylinder 6, send it between the two clamping blocks 43; rotate the handwheel 46 in the opposite direction to move the clamping block 43 inward until it is in close contact with the surface of the workpiece 2, and use the thread self-locking characteristic of the adjusting screw 45 to maintain clamping stability, and the symmetrical clamping blocks 43 on both sides ensure that the workpiece 2 is in the center position;
[0056] An external power source is connected through the power socket 8 on the power panel 7 on the front side of the control panel 1 to provide power for the operation of the device. The operator takes the necessary auxiliary tools from the mesh plate 9 and pushes the other end of the workpiece 2 toward the bending mechanism 3. The Y-shaped pull rod 33 moves with the workpiece 2 and rotates around the positioning shaft 32. The positioning pulley 34 and the bending pulley 35 rotate synchronously to reduce friction. After the workpiece 2 enters the bending channel, it bends under the squeezing action of the bending pulley 35 and the positioning pulley 34. The symmetrical bending mechanisms 3 on both sides ensure that the bending angle is uniform.
[0057] During the bending process, the mounting feet 12 at the bottom of the operating table 1 are fixed to the ground through bolt holes 13 to reduce device vibration; the rainproof canopy 10 at the top prevents rainwater or debris from entering the processing area, and the front storage drawer 11 can temporarily store accessories or waste materials, and its outer waterproof coating prevents moisture; the processed part 2 maintains a stable feed path under the continuous guidance of the positioning cylinder 6 to avoid deviation due to deflection.
[0058] After processing is completed, rotate the handwheel 46 in the opposite direction to release the clamping block 43 and take out the bent workpiece 2. If workpieces 2 of different diameters need to be processed, repeat the above adjustment steps. The multi-dimensional adjustment of the bending mechanism 3 and the adaptive clamping of the clamping mechanism 4 enable the device to adapt to workpieces 2 of various specifications. The auxiliary structure on the operating table 1 improves the stability and convenience of processing, ensuring the overall processing accuracy and efficiency.
[0059] 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. An adjustable steel structure bending device, comprising an operating table (1) and a processing part (2), characterized in that: The top front left and right ends of the operating table (1) are provided with bending mechanisms (3), which are used to bend workpieces (2) of different diameters. The top rear left and right ends of the operating table (1) are provided with clamping mechanisms (4), which are used to clamp and fix workpieces (2) of different diameters. The bending mechanism (3) includes two fixed discs (31), which are fixedly connected to the left and right ends of the top front side of the operating table (1). The top of each of the two fixed discs (31) is threaded with a positioning shaft (32). The outside of each of the two positioning shafts (32) is rotatably connected with a Y-shaped pull rod (33). The inner and outer ends of each of the two Y-shaped pull rods (33) are provided with positioning pulleys (34). The two positioning pulleys (34) are respectively sleeved on the middle of the outer side of the two positioning shafts (32). The inside of each of the two Y-shaped pull rods (33) is provided with a positioning pulley (34). There are bending pulleys (35), and the top and bottom of the two Y-shaped tie rods (33) are provided with adjustment grooves (36). The interior of the two adjustment grooves (36) is provided with adjustment bolts (37). The two bending pulleys (35) are respectively rotatably connected to the middle of the outer side of the two adjustment bolts (37). The ends of the two adjustment bolts (37) are threaded with adjustment nuts (38). The outer side of the two positioning pulleys (34) is engaged with positioning pins (39). The bottom ends of the two positioning pins (39) are respectively engaged with the top of the two fixed plates (31).
2. The adjustable steel structure bending device according to claim 1, characterized in that: The clamping mechanism (4) includes two L-shaped fixing blocks (41). The two L-shaped fixing blocks (41) are fixedly connected to the left and right ends of the top rear side of the operating table (1). The interior of each L-shaped fixing block (41) is provided with a sliding groove (42). The interior of each sliding groove (42) is slidably connected with a clamping block (43). The interior of each sliding groove (42) is fixedly connected with a bearing (44) on the left and right sides. The interior of each of the two bearings (44) on the left and the two bearings (44) on the right is fixedly connected with an adjusting screw (45). The two clamping blocks (43) are threaded to the exterior of the two adjusting screws (45). The outer ends of each adjusting screw (45) are fixedly connected with a handwheel (46).
3. The adjustable steel structure bending device according to claim 1, characterized in that: The left and right ends of the rear side of the operating table (1) are fixedly connected with diagonal braces (5). Both diagonal braces (5) adopt a figure-eight structure. The top of both diagonal braces (5) is fixedly connected with positioning cylinders (6). The two processing parts (2) pass through the interior of the two positioning cylinders (6).
4. The adjustable steel structure bending device according to claim 1, characterized in that: A power panel (7) is fixedly connected to the center of the front side of the control panel (1), and multiple power sockets (8) are fixedly connected to the front side of the power panel (7).
5. An adjustable steel structure bending device according to claim 1, characterized in that: A perforated plate (9) is fixedly connected to the upper front side of the operating table (1), and the outer side of the perforated plate (9) adopts a porous structure.
6. The adjustable steel structure bending device according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a rain shelter (10), and the rain shelter (10) has a triangular shape.
7. An adjustable steel structure bending device according to claim 1, characterized in that: The front left and right ends of the operating table (1) are fixedly connected to storage drawers (11), and the outer sides of the two storage drawers (11) are coated with waterproof paint.
8. An adjustable steel structure bending device according to claim 1, characterized in that: The bottom left and right ends of the operating table (1) are fixedly connected with mounting feet (12), and bolt holes (13) are opened at the front and rear ends of the top of the two mounting feet (12).