A bending fixture for square steel
By introducing a movable guide roller mechanism and traction system into the square steel bending fixture, the high cost problem caused by the coordination of multiple cranes was solved, and more efficient and low-cost production of circular tracks was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN MINE CRANE
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-04
AI Technical Summary
In the existing technology, the production of circular tracks requires the cooperation of multiple cranes, resulting in high production costs and inconvenience in use.
The system employs a movable first support guide roller mechanism and traction mechanism, combined with a telescopic mechanism and bending head, to gradually bend square steel into a ring shape by pulling it with a wire rope, thus reducing reliance on cranes.
It reduced production costs, improved production efficiency, reduced the need for cranes, and simplified the operation process.
Smart Images
Figure CN224586698U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel structure bending technology, and in particular relates to a bending fixture for square steel. Background Technology
[0002] Some existing lifting equipment includes rotary crane trolleys. Since rotary crane trolleys need to move along a circular track during use, it is necessary to produce a circular track that is compatible with the rotary crane trolley.
[0003] Currently, in the production of circular tracks, bending fixtures are typically used to gradually bend straight square steel into a ring shape along its length. This means that the square steel needs to be moved forward gradually along its length. Since the square steel used in the production of circular tracks is usually quite long, the steel is sometimes moved by a crane lifting it, with manual labor and the crane working together to gradually guide it forward. However, this method requires a crane to be paired with each bending fixture to ensure production progress. When there are many production stations, multiple cranes are needed, resulting in high production costs and inconvenience in use. Therefore, the existing technology still has shortcomings and deficiencies. Utility Model Content
[0004] The purpose of this invention is to provide a bending fixture for square steel to solve the problems mentioned in the background art.
[0005] The technical solution adopted by this utility model to solve the above problems is as follows: A bending fixture for square steel includes a control cabinet and a frame. It also includes several sets of movable and horizontally guiding first support guide roller mechanisms. A horizontally arranged telescopic mechanism is installed on one side of the frame. A bending head is installed at the telescopic end of the telescopic mechanism. The side of the bending head away from the telescopic mechanism is an arc-shaped opening facing the arc-shaped surface of the telescopic mechanism. Two sets of symmetrically distributed and horizontally guiding second support guide roller mechanisms are installed in the frame on both sides of the bending head. The frame is also equipped with a traction mechanism that carries a steel wire rope and can wind and unwind the steel wire rope. The traction mechanism is located outside one of the second set of support guide roller mechanisms. The control cabinet is electrically connected to the traction mechanism and the telescopic mechanism respectively.
[0006] Furthermore, the traction mechanism includes two opposing support seats connected to the frame, with horizontally distributed drums rotatably connected between the two support seats, and a traction motor connected to the drum drive mounted on one of the support seats. The traction motor is electrically connected to the control cabinet. One end of the wire rope is mounted on the drum, and after the wire rope is wound on the drum, the other end of the wire rope is a free end.
[0007] Furthermore, each of the first supporting guide roller mechanisms includes a horizontally arranged support plate, on which two vertically opposite first support rods are installed, and a horizontally arranged and rotatable first roller is installed between the two first support rods.
[0008] Furthermore, all the first support rods are threaded rods, and each first support rod is fitted with and threaded with a first positioning sleeve, and the first roller is installed between the two first positioning sleeves located on the same support plate.
[0009] Furthermore, each of the second supporting guide roller mechanisms includes two second support rods vertically installed in the frame, and a horizontally distributed and rotatable second roller is installed between the two second support rods.
[0010] Furthermore, the second support rods are all threaded rods, and each second support rod is fitted with and threaded with a second positioning sleeve. The second rotating roller is installed between the two second positioning sleeves of each group of second support guide roller mechanisms.
[0011] Furthermore, the two second rollers are arranged in a figure-eight pattern.
[0012] Furthermore, the telescopic mechanism includes an electric telescopic rod horizontally installed in the frame, the electric telescopic rod being electrically connected to the control cabinet, and the telescopic end of the electric telescopic rod being equipped with the bending head.
[0013] Furthermore, the electric telescopic rod is a hydraulic cylinder, which is connected to a hydraulic pump station mounted on the frame and signal-connected to the control cabinet. The hydraulic cylinder includes a cylinder barrel and a piston rod that can slide relative to each other. The end of the piston rod away from the cylinder barrel is equipped with the bending head. The end of the cylinder barrel away from the piston rod is hinged to the frame through vertically distributed hinge shafts. Below the other end of the cylinder barrel, a support beam is provided, which is horizontally installed in the frame and can support the cylinder barrel.
[0014] The beneficial effects of this utility model by adopting the above technical solution are as follows: In use, this utility model is similar to existing technology, where the square steel is gradually bent into a ring along its length. Specifically, because the first supporting guide roller mechanism is movable, multiple sets of the first supporting guide roller mechanism can be moved to be distributed at intervals on both sides of the frame, so that they are opposite to the positions of the second supporting guide roller mechanism. Furthermore, the guiding direction of the first supporting guide roller mechanism can be adjusted according to the direction of travel of the square steel. In use, after the square steel is hoisted onto the multiple sets of first supporting guide roller mechanisms located on the side of the frame away from the traction mechanism using lifting equipment, the lifting equipment can be removed, and the square steel can be hoisted to other workstations. At this time, multiple sets of first supporting guide roller mechanisms can be used... The machine supports the square steel. After connecting the wire rope of the traction mechanism to the end of the square steel furthest from the frame (the tail end), the traction mechanism winds up the wire rope. Under the action of multiple sets of first-support guide rollers, the square steel can be moved forward until the first bending part on the square steel is moved to the position opposite the bending head. Then, through the extension of the telescopic mechanism, the bending head can be moved to bend the square steel. When the square steel needs to move forward, the traction mechanism can continue to wind up the wire rope to move the square steel forward until all bending parts on the square steel are completed. Compared with existing technologies, this method of travel can reduce production costs and is easy to use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified structural diagram of part A in the middle; Figure 3 for Figure 1 One of the structural schematic diagrams of the middle part of the device; Figure 4 for Figure 3 A magnified structural diagram of section B in the middle; Figure 5 for Figure 3 Top view; Figure 6 for Figure 1 The second schematic diagram of the middle part of the device.
[0016] Reference numerals in the attached drawings: 1. First supporting guide roller mechanism; 11. Support plate; 12. First support rod; 13. First rotating roller; 14. First positioning sleeve; 2. Second supporting guide roller mechanism; 21. Second support rod; 22. Second rotating roller; 23. Second positioning sleeve; 3. Telescopic mechanism; 31. Electric telescopic rod; 311. Cylinder; 312. Piston rod; 32. Hydraulic pump station; 4. Traction mechanism; 41. Support seat; 42. Drum; 43. Traction motor; 5. Frame; 51. Base frame; 52. Top frame; 53. Support leg; 6. Bending head; 7. Hinge shaft; 8. Support beam. Detailed Implementation
[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0018] like Figures 1 to 6 As shown, this utility model provides a bending fixture for square steel. Specifically, in use, this utility model is the same as the prior art, where the square steel is gradually bent into a ring along its length. To facilitate observation of whether the bending part of the square steel has reached the correct position, a certain distance can be reserved at the beginning of the square steel before marking the first bending part. Then, multiple bending parts are marked on the square steel at equal intervals along its length, for example, the distance between two adjacent bending parts can be set to 100 mm. In addition, after the bending part of the square steel is moved into place, the bending part of the square steel can be heated using existing heat gun equipment to facilitate bending.
[0019] This utility model includes a control cabinet and a frame 5. Specifically, the frame 5 includes a base frame 51 and a top frame 52 arranged horizontally opposite each other. The top frame 52 and the base frame 51 are connected by several vertically distributed support legs 53. The control cabinet includes a PLC controller and control button switches, etc., and is externally powered.
[0020] This utility model also includes several sets of movable and horizontally guiding first support guide roller mechanisms 1. Each first support guide roller mechanism 1 includes a horizontally arranged support plate 11, on which two vertically opposite first support rods 12 are installed, and a horizontally arranged and rotatable first roller 13 is installed between the two first support rods 12. A horizontally arranged telescopic mechanism 3 is installed on one side of the frame 5. A bending head 6 is installed at the telescopic end of the telescopic mechanism 3. The side of the bending head 6 away from the telescopic mechanism 3 is an arc-shaped opening facing the arc-shaped surface of the telescopic mechanism 3, so that the square steel can be bent into a ring structure. Two sets of symmetrically distributed and horizontally guiding second support guide roller mechanisms 2 are installed in the frame 5 on both sides of the bending head 6. Each second support guide roller mechanism 2 includes two vertically installed second support rods 21 in the frame 5. The distribution of the second support rods 21 is as follows: Figure 3As shown, a horizontally distributed and rotatable second roller 22 is installed between the two second support rods 21.
[0021] Specifically, since the first supporting guide roller mechanism 1 is movable, multiple sets of the first supporting guide roller mechanism 1 can be moved to be distributed at intervals on both sides of the frame 5 during use, so that they are opposite to the positions of the second supporting guide roller mechanism 2. Furthermore, the guiding direction of the first supporting guide roller mechanism 1 can be adjusted according to the direction of travel of the square steel. For example, after the square steel is bent, the head end of the square steel will be arc-shaped. At this time, in order to facilitate the first supporting guide roller mechanism 1 on the side of the frame 5 closer to the traction mechanism 4 to guide and support the arc-shaped square steel, the guiding direction of the first supporting guide roller mechanism 1 can be adjusted by moving its position, so that the square steel can move forward. During use, after the square steel is hoisted onto multiple sets of the first supporting guide roller mechanism 1 located on the side of the frame 5 away from the traction mechanism 4 using lifting equipment, the lifting equipment can be removed, and the square steel can be hoisted to other work positions. At this time, the square steel can be supported by multiple sets of the first supporting guide roller mechanism 1.
[0022] In addition, the frame 5 is also equipped with a traction mechanism 4, which carries a steel wire rope and can wind and unwind the steel wire rope. The traction mechanism 4 is located outside one of the sets of second support guide roller mechanisms 2. The control cabinet is electrically connected to the traction mechanism 4 and the telescopic mechanism 3 respectively, that is, the control cabinet can control the start and stop of the traction mechanism 4 and the telescopic mechanism 3 respectively. Specifically, when the square steel is located on multiple sets of first support guide roller mechanisms 1, the steel wire rope of the traction mechanism 4 can be connected to the end of the square steel away from the frame 5, that is, the tail end of the square steel. Then, the steel wire rope is wound up by the traction mechanism 4. Under the action of multiple sets of first support guide roller mechanisms 1, the square steel can be driven forward until the first bending part on the square steel is moved to the position opposite to the bending head 6. That is, when the square steel is located on two sets of second support guide roller mechanisms 2, the extension of the telescopic mechanism 3 can drive the bending head 6 to move and bend the square steel. Specifically, after the bending head 6 moves into position, it can cooperate with the frame 5 to squeeze the square steel together to bend the square steel.
[0023] Then, when the square steel needs to move forward, the wire rope can be continuously wound up by the traction mechanism 4 to drive the square steel to continue moving. At this time, the length of the wire rope wound up by the traction mechanism 4 each time can be controlled by the control cabinet. For example, a corresponding program can be set in the control cabinet in advance so that the length of the wire rope wound up by the traction mechanism 4 each time is matched with the distance between two adjacent bending parts on the square steel. In this way, the bending parts on the square steel can be gradually moved into place. In addition, whether the bending parts on the square steel have moved into place can also be judged by human observation and assisted adjustment until all bending operations on the square steel are completed. Compared with the existing technology, this method of movement can reduce production costs because the manufacturing cost of the lifting equipment is much higher than the manufacturing cost of the traction mechanism 4 and the supporting guide roller mechanism; and it is also easy to use.
[0024] The specific configuration of traction mechanism 4 is as follows: Figure 1 , Figure 3 and Figure 5 As shown, the traction mechanism 4 includes two opposing support seats 41 connected to the frame 5. A horizontally distributed drum 42 is rotatably connected between the two support seats 41. A traction motor 43, which is driven by the drum 42, is installed on one of the support seats 41. The traction motor 43 is a forward and reverse motor and is electrically connected to the control cabinet. One end of the wire rope is installed on the drum 42, and after the wire rope is wound on the drum 42, the other end of the wire rope is a free end. Specifically, by starting the traction motor 43, the drum 42 can be driven to rotate forward and reverse to wind and unwind the wire rope. In use, according to the length of the square steel, after unwinding the wire rope, the free end of the wire rope can be connected to the tail end of the square steel using a connecting tool such as a magnet.
[0025] Furthermore, such as Figure 1 and Figure 6 As shown, the first support rods 12 are all threaded rods, and each first support rod 12 is fitted with and threadedly connected to a first positioning sleeve 14. The first rotating roller 13 is installed between the two first positioning sleeves 14 located on the same support plate 11. The first rotating roller 13 includes a roller shaft and a roller sleeve rotatably fitted on the roller shaft. Specifically, before installing the first rotating roller 13, the height position of the first positioning sleeve 14 can be adjusted by rotating the first positioning sleeve 14 on the first support rod 12, so that when installing the first rotating roller 13, it is convenient to install the first rotating roller 13 to a suitable height position according to its own usage needs.
[0026] Furthermore, such as Figures 1 to 3 and Figure 5As shown, the second support rods 21 are all threaded rods, and each second support rod 21 is fitted with and threadedly connected to a second positioning sleeve 23. A second rotating roller 22 is installed between the two second positioning sleeves 23 of each group of second supporting guide roller mechanisms 2. The second rotating roller 22 includes a roller shaft and a roller sleeve rotatably fitted on the roller shaft. Specifically, before installing the second rotating roller 22, the height position of the second positioning sleeve 23 can be adjusted by rotating the second positioning sleeve 23 on the second support rod 21. Thus, when installing the second rotating roller 22, it is convenient to install the second rotating roller 22 to a suitable height position according to its own usage requirements.
[0027] Furthermore, such as Figure 1 , Figure 3 and Figure 5 As shown, the two second rotating rollers 22 are arranged in a figure-eight shape, which makes the guiding range of the two sets of second supporting guide roller mechanisms 2 fan-shaped, so as to facilitate the forward movement of the square steel.
[0028] The specific configuration of the telescopic mechanism 3 is as follows: Figure 1 , Figures 3 to 5 As shown, the telescopic mechanism 3 includes an electric telescopic rod 31 horizontally installed in the frame 5. The electric telescopic rod 31 is electrically connected to the control cabinet, meaning the control cabinet can control the extension and retraction of the electric telescopic rod 31. The extension and retraction end of the electric telescopic rod 31 is equipped with the bending head 6. Specifically, in the initial state, the extension and retraction end of the electric telescopic rod 31 is in a retracted state. In use, by extending the extension and retraction end of the electric telescopic rod 31, the bending head 6 can be moved to bend the square steel.
[0029] Furthermore, such as Figure 1 , Figures 3 to 5 As shown, the electric telescopic rod 31 is a hydraulic cylinder, specifically a high-tonnage hydraulic cylinder, such as a 100T hydraulic cylinder, to ensure that the square steel can be bent. The hydraulic cylinder is connected to a hydraulic pump station 32 mounted on the frame 5 and connected to the control cabinet via a signal. The hydraulic pump station 32 is the power source for the extension and retraction of the hydraulic cylinder. The hydraulic pump station 32 can also adjust the pressure of the hydraulic cylinder. The hydraulic cylinder includes a cylinder barrel 311 and a piston rod 312 that can slide relative to each other. The bending head 6 is installed at the end of the piston rod 312 away from the cylinder barrel 311. The end of the cylinder barrel 311 away from the piston rod 312 is hinged to the frame 5 via vertically distributed hinge shafts 7. Specifically, hinge seats are installed on the frame 5 and at the end of the cylinder barrel 311 near the frame 5. The two hinge seats are hinged together via hinge shafts 7 to achieve the hinge connection between the end of the hydraulic cylinder away from the bending head 6 and the frame 5.
[0030] Below the other end of cylinder 311, there is a horizontally mounted support beam 8 inside the frame 5 that supports cylinder 311. Specifically, the bottom of cylinder 311 abuts against the top surface of support beam 8. At this time, since the hydraulic cylinder is a large-tonnage hydraulic cylinder, under the action of its own weight, cylinder 311 can be firmly fixed on support beam 8, and the position of hydraulic cylinder will not move. When debugging the equipment, a crane can be used to slightly lift the end of cylinder 311 away from hinge shaft 7, and then the position of hydraulic cylinder can be adjusted by rotating the hydraulic cylinder. Thus, when in use, the hydraulic cylinder can be adjusted to a suitable position according to the curvature of the square steel.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A square steel bending tooling, comprising a control cabinet and a frame, characterized in that: It also includes several sets of movable and horizontally guiding first support guide roller mechanisms. A horizontally arranged telescopic mechanism is installed on one side of the frame. A bending head is installed at the telescopic end of the telescopic mechanism. The side of the bending head away from the telescopic mechanism is an arc-shaped opening facing the arc-shaped surface of the telescopic mechanism. Two sets of symmetrically distributed and horizontally guiding second support guide roller mechanisms are installed in the frame on both sides of the bending head. The frame is also equipped with a traction mechanism that carries a steel wire rope and can wind and unwind the steel wire rope. The traction mechanism is located outside one of the second set of support guide roller mechanisms. The control cabinet is electrically connected to the traction mechanism and the telescopic mechanism respectively.
2. The square steel bending tooling apparatus of claim 1, wherein: The traction mechanism includes two opposing support seats connected to the frame. A horizontally distributed drum is rotatably connected between the two support seats. A traction motor connected to the drum is installed on one of the support seats. The traction motor is electrically connected to the control cabinet. One end of the wire rope is installed on the drum, and after the wire rope is wound on the drum, the other end of the wire rope is a free end.
3. The square steel bending tooling apparatus of claim 1, wherein: Each of the first support guide roller mechanisms includes a horizontally arranged support plate, on which two vertically opposite first support rods are installed, and a horizontally arranged and rotatable first roller is installed between the two first support rods.
4. The square steel bending tooling apparatus of claim 3, wherein: The first support rods are all threaded rods, and each first support rod is fitted with and threaded with a first positioning sleeve. The first roller is installed between the two first positioning sleeves located on the same support plate.
5. The square steel bending tooling apparatus of claim 1, wherein: The second support guide roller mechanism includes two second support rods that are vertically installed in the frame, and a horizontally distributed and rotatable second roller is installed between the two second support rods.
6. The square steel bending tooling apparatus of claim 5, wherein: The second support rods are all threaded rods, and each second support rod is fitted with and threaded with a second positioning sleeve. The second rotating roller is installed between the two second positioning sleeves of each group of second support guide roller mechanisms.
7. The square steel bending tooling apparatus of claim 5 or 6, wherein: The two second rollers are arranged in a figure-eight pattern.
8. The square steel bending tooling apparatus of claim 1, wherein: The telescopic mechanism includes an electric telescopic rod horizontally installed in the frame. The electric telescopic rod is electrically connected to the control cabinet, and the telescopic end of the electric telescopic rod is equipped with the bending head.
9. The square steel bending tooling apparatus of claim 8, wherein: The electric telescopic rod is a hydraulic cylinder. The hydraulic cylinder is connected to a hydraulic pump station mounted on the frame and connected to the control cabinet via a signal. The hydraulic cylinder includes a cylinder barrel and a piston rod that can slide relative to each other. The end of the piston rod away from the cylinder barrel is equipped with the bending head. The end of the cylinder barrel away from the piston rod is hinged to the frame via vertically distributed hinge shafts. A support beam is provided below the other end of the cylinder barrel, which is horizontally installed in the frame and can support the cylinder barrel.