H-beam bending processing device and use method thereof

Abstract

The present invention belongs to the technical field of rolling mill processing, and specifically relates to an H-beam bending processing device and a method for using the same. The processing device comprises a forming die, wherein the forming die comprises a fixed die and a movable die which are arranged opposite to each other; a bending wheel, wherein the bending wheel and the forming die cooperate to perform bending processing on the H-beam; a transmission assembly, wherein the transmission assembly comprises a cavity, wherein the cavity has a plurality of piston ports, wherein the piston ports are all provided with piston rods, and wherein the piston rods are respectively connected to the movable die and the bending wheel; wherein the piston ports are all oriented in the same direction, and under the action of the transmission assembly, the moving directions of the movable die and the bending wheel are opposite; a hydraulic transmission system is adopted instead of a traditional gear transmission, thereby simplifying the installation and debugging process of the equipment, reducing the complexity of operation, and shortening the preparation time; the telescopic control of the second piston rod controls the position of the bending wheel, thereby making the conversion from web bending to flange bending simple and quick.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling mill processing, and particularly relates to an H-beam bending processing device and a use method thereof. Background Art

[0002] H-beam is an efficient and economical profile with optimized design, and its cross-sectional shape is similar to the English letter "H". This kind of steel is characterized by its right-angled structure, which gives it excellent bending resistance, simple construction, cost-effectiveness and light structural weight, so it has been widely used in various projects. In some engineering projects, steel needs to be bent into specific shapes, such as arched bridges, circular or curved building structures, and pipe supports. At this time, special H-beam processing equipment is needed for bending. For example, a patent entitled "A steel structure and its processing equipment" (application number: CN202411017341.X) drives the connecting plate to move through a hydraulic cylinder, drives the two connecting rods to move through the connecting plate, drives the shaft seat to move through the two connecting rods, drives the second pressing roller to move through the two shaft seats, and squeezes the inner wall of the groove on the H-beam upward through the second pressing roller, so that the H-beam is bent. Another patent (name: "An H-beam bending and forming equipment", application number: CN202210629340.5) uses the steel's own gravity for automatic clamping and fixing, ensuring stability during the bending process. The equipment can achieve bidirectional bending, which not only improves the bending effect, but also provides an automatic cooling function after the bending is completed. However, in actual application, these two H-beam processing equipment also face some challenges:

[0003] First of all, H-beams are composed of webs and flanges, which determines that the bending of H-beams can be divided into two cases: web bending and flange bending. In construction engineering, flanges are mainly used to resist the weight of the building itself and other vertical loads, and provide bending stiffness; while webs are responsible for transmitting shear forces and dispersing loads. Generally, bent webs are more common because they have less impact on structural performance, are easy to process, and are cost-effective. However, in certain specific design requirements, such as when special curve shapes or specific aesthetic effects are required, bent flanges may be a better choice. For example, when designing arched bridges or buildings with streamlined appearances, bent flanges can achieve more complex geometric shapes to meet the creative needs of designers. However, the two existing H-beam processing equipment have functional limitations. On the one hand, the equipment in one steel structure and its processing equipment can only perform web bending; on the other hand, the other H-beam bending and forming equipment can only perform flange bending. These two devices are only suitable for single web bending or flange bending, respectively, and this single function seriously limits their scope of application in practical applications. This means that when faced with diverse needs, users may need to purchase multiple devices to meet different types of bending operations, increasing costs and management complexity.

[0004] Secondly, since H-beams usually have a large flange width to web thickness ratio, and the inner and outer sides of the flanges are usually straight edges without slopes. This structural characteristic requires additional support for the H-beam to maintain its shape when bending. However, the above two devices failed to provide adequate support for the H-beam before web bending or flange bending. This can easily lead to distortion of the H-beam during the bending process, ultimately causing the failure of the bending process. Specifically, without sufficient support, the H-beam may produce unexpected deformation when subjected to bending stress, especially for those with larger sizes or harder materials. This distortion will not only reduce the quality of the finished product, but may also lead to material waste and reduced production efficiency.

[0005] Finally, both of the above-mentioned equipment use gear transmission to drive the bending parts. Since the installation and commissioning of the gear transmission system is relatively complicated, especially in the case of multi-gear combinations, it may take a long time. Considering the large number of sizes and specifications of H-beams, when frequently changing bending parts of different specifications, the adjustment and maintenance of the equipment becomes more difficult due to the influence of the gear transmission system. This not only prolongs the preparation time, but also increases the workload of the operators.

[0006] In summary, the existing H-beam processing equipment has a single function and can only perform web bending or flange bending, which cannot meet the diverse engineering needs; and it has poor support for H-beams, which is prone to distortion, leading to problems such as bending failure. Summary of the invention

[0007] In view of this, an object of the present invention is to provide an H-beam bending processing device and a method of using the same to solve the problems existing in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the first technical solution of the present invention is an H-beam bending processing device, the processing device comprising: a forming mold, the forming mold acts on the middle part of the H-beam to extrude and bend the H-beam, the forming mold comprises a fixed mold and a movable mold which are arranged oppositely; a bending wheel, the bending wheel is arranged on both sides of the forming mold, and cooperates with the forming mold to bend the H-beam; a transmission assembly, the transmission assembly comprises a cavity, the cavity has a plurality of piston ports, the piston ports are all provided with piston rods, and the piston rods are respectively connected to the movable mold and the bending wheel; the piston ports are all facing the same direction, and under the action of the transmission assembly, the moving directions of the movable mold and the bending wheel are opposite; when the H-beam is bent, the movable mold moves toward the fixed mold, and under the action of the transmission assembly, the bending wheel moves in the direction of the movable mold, and the bending wheel and the movable mold act on the H-beam together to achieve the bending process thereof.

[0009] Preferably, the H-shaped steel is composed of a web and a flange plate, and the bending process of the H-shaped steel is divided into web bending and flange bending. The length of the web on the cross section of the H-shaped steel is greater than the length of the flange plate; the thickness of the fixed mold and the movable mold is equal to the length of the web on the cross section of the H-shaped steel, the caliber of the bending wheel is equal to the thickness of the bending wheel is equal to the length of the web on the cross section of the H-shaped steel, and the axial direction of the bending wheel is parallel to the thickness direction of the fixed mold and the movable mold; when the web of the H-shaped steel is bent, the fixed mold and the movable mold act on the web, and the side of the bending wheel acts on the web to bend the H-shaped steel; when the flange of the H-shaped steel is bent, the fixed mold and the movable mold act on the flange, and the upper end surface of the bending wheel acts on the web to bend the H-shaped steel.

[0010] Furthermore, the piston rods are respectively a first piston rod and a second piston rod, the second piston rod is a telescopic rod, the first piston rod is connected to the movable mold, and the second piston rod is connected to the bending wheel; when the processing device is switching between web bending and flange bending, the position of the bending wheel is controlled by the telescopic movement of the second piston rod, so that the forming mold and the bending wheel fix the H-shaped steel.

[0011] Preferably, the processing device includes a workbench, on which are provided a guide groove and a connecting groove connecting the upper and lower parts, the bottom end of the movable mold passes through the connecting groove, and the rotating shaft of the bending wheel passes through the guide groove; the transmission assembly is located on the back of the workbench, and the transmission assembly includes a moving part connected to the second piston rod, a slider is provided on the moving part, and the bending wheel is rotatably mounted on the slider; under the action of the transmission assembly, the bending wheel can move along the guide groove.

[0012] Furthermore, the processing device includes a rolling assembly, which includes a rolling wheel. The rolling wheel is used to shape the surface of the H-beam during the bending process of the H-beam and after the bending is completed. The specifications of the rolling wheel are the same as those of the bending wheel. The rolling wheel rolls on the surface of the H-beam to eliminate the unevenness of the surface of the H-beam caused by the bending process, and at the same time release the internal stress of the H-beam.

[0013] Furthermore, the rolling assembly also includes a lifting frame, on which a first guide rail system and a second guide rail system are arranged, the transmission direction of the first guide rail system is perpendicular to the transmission direction of the second guide rail system, the transmission direction of the second guide rail system is parallel to the placement direction of the H-beam, and the moving end of the second guide rail system is rotatably connected to the rolling wheel; the rolling wheels are symmetrically distributed on both sides of the forming mold, and the second guide rail system is a double-station symmetrical moving guide rail system, which ensures the synchronization of the movement of the rolling wheels on both sides during the H-beam bending process.

[0014] Furthermore, when the web of the H-shaped steel is bent, the fixed die and the movable die act on the web, the side of the bending wheel acts on the web, and the side of the rolling wheel acts on the web, so that the H-shaped steel is bent; when the flange of the H-shaped steel is bent, the fixed die and the movable die act on the flange, the upper end surface of the bending wheel acts on the web, and the lower end surface of the rolling wheel acts on the web, so that the H-shaped steel is bent.

[0015] Furthermore, the molding die also includes a first mounting plate and a second mounting plate installed in parallel on the workbench, a telescopic cylinder is provided on the first mounting plate, an output end of the telescopic cylinder is connected to the movable mold, and the fixed mold is installed on the second mounting plate.

[0016] In order to solve the above technical problems, the second technical solution of the present invention is a method for using an H-beam bending processing device, which uses the H-beam processing device described in the first technical solution. When the processing device is used to bend the web of the H-beam, the method of use is as follows:

[0017] S1. Separate the fixed mold and the movable mold, place the H-shaped steel in an "I" shape, and then let the fixed mold and the movable mold act on the web of the H-shaped steel;

[0018] S2, controlling the position of the bending wheel through the second piston rod so that the side of the bending wheel acts on the web of the H-beam;

[0019] S3, by adjusting the lifting frame, the first guide rail system and the second guide rail system, the side of the rolling wheel acts on the web of the H-shaped steel;

[0020] S4. The fixed die and the movable die are used to extrude and bend the middle part of the H-shaped steel through the telescopic cylinder. Under the action of the transmission assembly, the bending wheels are used to bend both sides of the H-shaped steel to achieve synchronous bending.

[0021] S5. During the bending process of the H-beam, the first guide rail system and the second guide rail system are used to control the rolling wheel to roll back and forth on the surface of the H-beam until the bending of the H-beam is completed.

[0022] In order to solve the above technical problems, the third technical solution of the present invention is a method for using an H-beam bending processing device, which is characterized by: applying the H-beam processing device described in the first technical solution, when the processing device is used to bend the flange plate of the H-beam, the method of use is as follows:

[0023] S1. Separate the fixed mold and the movable mold, place the H-shaped steel in an "H" shape, and then let the fixed mold and the movable mold act on the flange plate of the H-shaped steel;

[0024] S2, controlling the position of the bending wheel through the second piston rod so that the upper end surface of the bending wheel acts between the two flange plates of the H-beam;

[0025] S3, by adjusting the lifting frame, the first guide rail system and the second guide rail system, the lower end surface of the rolling wheel acts between the two flange plates of the H-shaped steel;

[0026] S4. The fixed die and the movable die are used to extrude and bend the middle part of the H-shaped steel through the telescopic cylinder. Under the action of the transmission assembly, the bending wheels are used to bend both sides of the H-shaped steel to achieve synchronous bending.

[0027] S5. During the bending process of the H-beam, the first guide rail system and the second guide rail system are used to control the rolling wheel to roll back and forth on the surface of the H-beam until the bending of the H-beam is completed.

[0028] The technical effects of the present invention are mainly reflected in the following aspects:

[0029] The device can perform web bending and flange bending at the same time, overcoming the problem of single function of traditional equipment and meeting diversified engineering needs. It eliminates the need for users to purchase multiple devices to complete different types of tasks, thus reducing costs and management complexity.

[0030] Through the joint action of the movable mold and the bending wheel, a more stable support is provided, the distortion of the H-beam during the bending process is reduced, and the quality of the finished product is improved; the rolling wheel shapes the surface of the H-beam during the bending process, eliminating the unevenness of the surface caused by the bending process, and further improving the surface quality.

[0031] The use of hydraulic transmission system instead of traditional gear transmission simplifies the installation and commissioning process of the equipment, reduces the complexity of operation and shortens the preparation time; the telescopic control of the second piston rod controls the position of the bending wheel, making the conversion from web bending to flange bending simple and fast. The use of the hydraulic system allows the equipment to quickly adjust the position of the bending parts according to H-shaped steel of different sizes and specifications, improving the adaptability and flexibility of the equipment; the adjustment of the lifting frame, the first guide rail system and the second guide rail system allows the position of the rolling wheel to be accurately controlled, ensuring the stability and accuracy during the processing.

[0032] By rolling the rolling wheel back and forth on the surface of the H-beam, the unevenness caused by the bending process is eliminated, the internal stress is released, and the surface quality and overall stability of the H-beam are improved; through the shaping treatment of the rolling wheel, the smoothness and flatness of the H-beam surface are ensured, and the aesthetics and functionality of the product are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of the present invention;

[0034] Figure 2 It is a half-section structure diagram of the present invention;

[0035] Figure 3 for Figure 1 Structural drawing of medium H-beam;

[0036] Figure 4 for Figure 3 Effect diagram of H-beam web bending;

[0037] Figure 5 for Figure 3 The effect diagram of the bending of the middle H-shaped steel flange plate;

[0038] Figure 6 for Figure 1 Structural diagram of the intermediate forming die;

[0039] Figure 7 for Figure 1 Structural diagram of the transmission assembly;

[0040] Figure 8 for Figure 1 The structural diagram of the middle workbench;

[0041] Fig. 9for Figure 1 Structural diagram of the middle rolling assembly;

[0042] In the figure: 1. H-shaped steel, 11. web, 12. flange plate; 2. forming mold, 21. fixed mold, 22. movable mold, 23. first mounting plate, 24. second mounting plate, 25. telescopic cylinder; 3. bending wheel; 4. transmission assembly, 41. cavity, 42. piston port, 43. first piston rod, 44. second piston rod, 45. moving part, 46. slider; 5. workbench, 51. guide groove, 52. connecting groove; 6. rolling assembly, 61. rolling wheel, 62. lifting frame, 63. first guide rail system, 64. second guide rail system. DETAILED DESCRIPTION

[0043] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0044] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection and the like commonly used in the prior art, and therefore, it will not be described in detail in this embodiment.

[0046] Embodiment 1

[0047] Embodiment 1

[0048] An H-beam 1 bending processing device, see Figure 1 , Figure 2The processing device includes: a forming mold 2, which acts on the middle part of the H-shaped steel 1 to extrude and bend the H-shaped steel 1. The forming mold 2 includes a fixed mold 21 and a movable mold 22 which are arranged opposite to each other. The fixed mold 21 is fixed and the movable mold 22 moves toward the fixed mold 21 under the action of the hydraulic system; a bending wheel 3, which is arranged on both sides of the forming mold 2 and cooperates with the forming mold 2 to bend the H-shaped steel 1; and a transmission assembly 4 is linked with the movable mold 22. When the movable mold 22 moves toward the fixed mold 21, the bending wheel 3 also moves accordingly to apply a bending force to the H-shaped steel 1. The transmission assembly 4 includes a cavity 41, and the cavity 41 contains hydraulic oil for transmitting power. The cavity 41 has a plurality of piston ports 42, and the piston ports 42 are all provided with piston rods. The piston rods are respectively connected to the movable mold 22 and the bending wheel 3, and the movable mold 22 and the bending wheel 3 are pushed to move under the action of the hydraulic oil. The piston ports 42 are all facing the same direction. Under the action of the transmission assembly 4, the moving directions of the movable mold 22 and the bending wheel 3 are opposite. When the H-beam 1 is bent, the movable mold 22 moves toward the fixed mold 21. Under the action of the transmission assembly 4, the bending wheel 3 moves in the direction of the movable mold 22. The bending wheel 3 and the movable mold 22 act together on the H-beam 1 to achieve the bending process. When the H-beam 1 is bent, the movable mold 22 moves toward the fixed mold 21 under the push of the hydraulic oil. At the same time, under the action of the transmission assembly 4, the bending wheel 3 moves in the direction of the movable mold 22. The movable mold 22 and the bending wheel 3 act together on the H-beam 1 to achieve the bending process. During the bending process, the movable mold 22 and the bending wheel 3 provide sufficient support, effectively preventing the H-beam 1 from twisting, and avoiding the unexpected deformation problem common in traditional equipment. The hydraulic transmission system is used instead of the traditional gear transmission, which simplifies the installation and commissioning process of the equipment, reduces the complexity of operation, and shortens the preparation time.

[0049] See also Figure 3 , Figure 4 , Figure 5The H-shaped steel 1 is composed of a web 11 and a flange 12. The bending process of the H-shaped steel 1 is divided into bending of the web 11 and bending of the flange 12. The length of the web 11 on the cross section of the H-shaped steel 1 is greater than the length of the flange 12. The thickness of the fixed mold 21 and the movable mold 22 is equal to the length of the web 11 on the cross section of the H-shaped steel 1. The diameter of the bending wheel 3 is equal to the thickness of the bending wheel 3 is equal to the length of the web 11 on the cross section of the H-shaped steel 1. The axial direction and The thickness directions of the fixed die 21 and the movable die 22 are parallel; when the web 11 of the H-shaped steel 1 is bent, the fixed die 21 and the movable die 22 act on the web 11, and the side surface of the bending wheel 3 acts on the web 11 to bend the H-shaped steel 1; when the flange 12 of the H-shaped steel 1 is bent, the fixed die 21 and the movable die 22 act on the flange 12, and the upper end surface of the bending wheel 3 acts on the web 11 to bend the H-shaped steel 1.

[0050] Specifically, the device can not only bend the web 11, but also bend the flange 12, overcoming the problem of single function of traditional equipment and meeting diversified engineering needs; through the joint action of the movable mold 22 and the bending wheel 3, a more stable support is provided, the distortion of the H-beam 1 during the bending process is reduced, and the quality of the finished product is improved. The hydraulic transmission system is used instead of the traditional gear transmission, which simplifies the installation and commissioning process of the equipment, reduces the complexity of operation, and shortens the preparation time; due to the use of the hydraulic system, the position of the bending part can be quickly adjusted according to the H-beam 1 of different sizes and specifications, which improves the adaptability and flexibility of the equipment.

[0051] See also Figure 7 The piston rods are respectively a first piston rod 43 and a second piston rod 44, the second piston rod 44 is a telescopic rod, the first piston rod 43 is connected to the movable mold 22, and the second piston rod 44 is connected to the bending wheel 3; when the processing device is converting the bending of the web 11 and the flange 12, the position of the bending wheel 3 is controlled by the telescopic movement of the second piston rod 44, so that the forming mold 2 and the bending wheel 3 fix the H-shaped steel 1.

[0052] Specifically, when switching between bending the web 11 and bending the flange 12, the position of the bending wheel 3 is controlled by extending and retracting the second piston rod 44. In this way, the forming mold 2 and the bending wheel 3 can accurately fix the H-shaped steel 1, ensuring stability and accuracy during the processing; the position of the bending wheel 3 is controlled by extending and retracting the second piston rod 44, thereby achieving a rapid switch from bending the web 11 to bending the flange 12, thereby improving the versatility and ease of operation of the equipment.

[0053] See also Figure 8The processing device includes a workbench 5, on which a guide groove 51 and a connecting groove 52 are provided, which are connected to the upper and lower parts. The bottom end of the movable mold 22 passes through the connecting groove 52, and the rotating shaft of the bending wheel 3 passes through the guide groove 51. The bottom end of the movable mold 22 passes through the connecting groove 52 to ensure the smooth movement of the movable mold 22; the rotating shaft of the bending wheel 3 passes through the guide groove 51 to ensure the smooth movement of the bending wheel 3 in the guide groove 51. The transmission assembly 4 is located on the back of the workbench 5, and the transmission assembly 4 includes a moving member 45 connected to the second piston rod 44. The moving member 45 is provided with a slider 46, and the bending wheel 3 is rotatably mounted on the slider 46; under the action of the transmission assembly 4, the bending wheel 3 can move along the guide groove 51 to ensure the accurate position of the bending wheel 3. Specifically, through the design of the guide groove 51 and the connecting groove 52 on the workbench 5, the precise movement of the movable mold 22 and the bending wheel 3 is ensured, making the structure of the entire equipment more compact and reasonable.

[0054] See also Fig. 9 The processing device includes a rolling assembly 6, and the rolling assembly 6 includes a rolling wheel 61. The rolling wheel 61 is used to shape the surface of the H-beam 1 during the bending process of the H-beam 1 and after the bending is completed. The specifications of the rolling wheel 61 are the same as those of the bending wheel 3. The rolling wheel 61 rolls on the surface of the H-beam 1 to eliminate the unevenness of the surface of the H-beam 1 caused by the bending process, and at the same time release the internal stress of the H-beam 1. The rolling assembly 6 also includes a lifting frame 62, on which a first guide rail system 63 and a second guide rail system 64 are arranged, the transmission direction of the first guide rail system 63 is perpendicular to the transmission direction of the second guide rail system 64, the transmission direction of the second guide rail system 64 is parallel to the placement direction of the H-beam 1, and the moving end of the second guide rail system 64 is rotatably connected to the rolling wheel 61; the rolling wheels 61 are symmetrically distributed on both sides of the forming mold 2, and the second guide rail system 64 is a double-station symmetrical moving guide rail system to ensure the synchronization of the movement of the rolling wheels 61 on both sides during the bending process of the H-beam 1.

[0055] Specifically, the rolling wheel 61 is used to shape the surface of the H-beam 1 during the bending process of the H-beam 1 and after the bending is completed. The specifications of the rolling wheel 61 are the same as those of the bending wheel 3 to ensure the consistency and reliability of the rolling effect. By rolling the rolling wheel 61 on the surface of the H-beam 1, the unevenness of the surface of the H-beam 1 caused by the bending process can be eliminated, and the internal stress of the H-beam 1 can be released, thereby improving the surface quality and overall stability of the H-beam 1.

[0056] See also Figure 3 , Figure 4 , Figure 5When the web 11 of the H-beam 1 is bent, the fixed die 21 and the movable die 22 act on the web 11, the side of the bending wheel 3 acts on the web 11, and the side of the rolling wheel 61 acts on the web 11 to bend the H-beam 1; when the flange 12 of the H-beam 1 is bent, the fixed die 21 and the movable die 22 act on the flange 12, the upper end face of the bending wheel 3 acts on the web 11, and the lower end face of the rolling wheel 61 acts on the web 11 to bend the H-beam 1. The rolling wheel 61 also rolls on the surface of the H-beam 1 to eliminate the unevenness of the surface caused by the bending process and release the internal stress.

[0057] See also Figure 6 The molding die 2 further includes a first mounting plate 23 and a second mounting plate 24 mounted in parallel on the workbench 5, a telescopic cylinder 25 is provided on the first mounting plate 23, an output end of the telescopic cylinder 25 is connected to the movable die 22, and the fixed die 21 is mounted on the second mounting plate 24. Through the design of the first mounting plate 23 and the second mounting plate 24, the installation of the movable die 22 and the fixed die 21 is more stable, and the position is easy to adjust, thereby improving the processing accuracy.

[0058] Embodiment 2

[0059] A method for using an H-beam 1 bending processing device, using the H-beam 1 processing device described in the first embodiment, when the processing device is used to bend the web 11 of the H-beam 1, the method for using is as follows:

[0060] Preparation stage (S1): separate the fixed mold 21 and the movable mold 22, place the H-shaped steel 1 on the workbench 5 like an "I" shape, and let the fixed mold 21 and the movable mold 22 act on the web 11 of the H-shaped steel 1.

[0061] Positioning of the bending wheel 3 ( S2 ): The position of the bending wheel 3 is controlled by the second piston rod 44 so that the side surface of the bending wheel 3 acts on the web 11 of the H-shaped steel 1 .

[0062] Positioning of the rolling wheel 61 ( S3 ): The side surface of the rolling wheel 61 acts on the web 11 of the H-shaped steel 1 by adjusting the lifting frame 62 , the first guide rail system 63 and the second guide rail system 64 .

[0063] Bending process (S4): The fixed die 21 and the movable die 22 are used to extrude and bend the middle part of the H-shaped steel 1 through the telescopic cylinder 25, and the bending wheel 3 is used to bend the two sides of the H-shaped steel 1 under the action of the transmission component 4 to achieve synchronous bending.

[0064] Rolling process (S5): During the bending process of the H-beam 1, the first guide rail system 63 and the second guide rail system 64 control the rolling wheel 61 to roll back and forth on the surface of the H-beam 1 until the bending of the H-beam 1 is completed.

[0065] Embodiment 3

[0066] A method for using an H-beam 1 bending processing device, using the H-beam 1 processing device described in the first embodiment, when the processing device is used to bend the flange plate 12 of the H-beam 1, the method for using is as follows:

[0067] Preparation stage ( S1 ): separate the fixed mold 21 and the movable mold 22 , place the H-shaped steel 1 on the workbench 5 in an “H” shape, and allow the fixed mold 21 and the movable mold 22 to act on the flange plate 12 of the H-shaped steel 1 .

[0068] Positioning of the bending wheel 3 ( S2 ): The position of the bending wheel 3 is controlled by the second piston rod 44 so that the upper end surface of the bending wheel 3 acts between the two flange plates 12 of the H-shaped steel 1 .

[0069] Positioning of the rolling wheel 61 ( S3 ): by adjusting the lifting frame 62 , the first guide rail system 63 and the second guide rail system 64 , the lower end surface of the rolling wheel 61 acts between the two flange plates 12 of the H-shaped steel 1 .

[0070] Bending process (S4): The fixed die 21 and the movable die 22 are used to extrude and bend the middle part of the H-shaped steel 1 through the telescopic cylinder 25, and the bending wheel 3 is used to bend the two sides of the H-shaped steel 1 under the action of the transmission component 4 to achieve synchronous bending.

[0071] Rolling process (S5): During the bending process of the H-beam 1, the first guide rail system 63 and the second guide rail system 64 control the rolling wheel 61 to roll back and forth on the surface of the H-beam 1 until the bending of the H-beam 1 is completed.

[0072] In addition, as common knowledge in the industry, the telescopic cylinder 25, the lifting frame 62, the first guide rail system 63 and the second guide rail system 64 mentioned above are common knowledge, so their principles and structures will not be described in detail.

[0073] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An H-beam bending processing device, characterized in that: The processing device comprises: A forming die, the forming die acts on the middle part of the H-shaped steel to extrude and bend the H-shaped steel, and the forming die includes a fixed die and a movable die that are arranged opposite to each other; a bending wheel, the bending wheel is arranged on both sides of the forming die, and cooperates with the forming die to bend the H-shaped steel; a transmission assembly, the transmission assembly includes a cavity, the cavity has a plurality of piston ports, the piston ports are all provided with piston rods, and the piston rods are respectively connected to the movable die and the bending wheel; the piston ports are all facing the same direction, and under the action of the transmission assembly, the moving directions of the movable die and the bending wheel are opposite; when the H-shaped steel is bent, the movable die moves toward the fixed die, and under the action of the transmission assembly, the bending wheel moves in the direction of the movable die, and the bending wheel and the movable die act together on the H-shaped steel to achieve its bending; The H-shaped steel is composed of a web and a flange plate, and the bending process of the H-shaped steel is divided into web bending and flange bending. The length of the web on the cross section of the H-shaped steel is greater than the length of the flange plate; the thickness of the fixed die and the movable die is equal to the length of the web on the cross section of the H-shaped steel, the caliber of the bending wheel is equal to the thickness of the bending wheel is equal to the length of the web on the cross section of the H-shaped steel, and the axial direction of the bending wheel is parallel to the thickness direction of the fixed die and the movable die; The processing device comprises a rolling assembly, and the rolling assembly comprises a rolling wheel, and the rolling wheel is used to shape the surface of the H-beam during the bending process of the H-beam and after the bending is completed, and the specification of the rolling wheel is the same as that of the bending wheel; the rolling wheel rolls on the surface of the H-beam to eliminate the unevenness of the surface of the H-beam caused by the bending process, and releases the internal stress of the H-beam; The rolling assembly also includes a lifting frame, on which a first guide rail system and a second guide rail system are arranged, the transmission direction of the first guide rail system is perpendicular to the transmission direction of the second guide rail system, the transmission direction of the second guide rail system is parallel to the placement direction of the H-beam, and the moving end of the second guide rail system is rotatably connected to the rolling wheel; the rolling wheels are symmetrically distributed on both sides of the forming mold, and the second guide rail system is a double-station symmetrical moving guide rail system to ensure the synchronization of the movement of the rolling wheels on both sides during the H-beam bending process; When the web of the H-shaped steel is bent, the fixed die and the movable die act on the web, the side of the bending wheel acts on the web, and the side of the rolling wheel acts on the web to bend the H-shaped steel; when the flange of the H-shaped steel is bent, the fixed die and the movable die act on the flange, the upper end surface of the bending wheel acts on the web, and the lower end surface of the rolling wheel acts on the web to bend the H-shaped steel.

2. The H-beam bending device according to claim 1, characterized in that: The piston rods are respectively a first piston rod and a second piston rod, the second piston rod is a telescopic rod, the first piston rod is connected to the movable mold, and the second piston rod is connected to the bending wheel; When the processing device performs conversion between web bending and flange bending, the position of the bending wheel is controlled by the extension and retraction of the second piston rod, so that the forming die and the bending wheel fix the H-shaped steel.

3. The H-beam bending device according to claim 2, characterized in that: The processing device comprises a workbench, on which a guide groove and a connecting groove are provided, the bottom end of the movable mold passes through the connecting groove, and the rotating shaft of the bending wheel passes through the guide groove; The transmission assembly is located at the back of the workbench, and the transmission assembly includes a moving part connected to the second piston rod, a slider is provided on the moving part, and the bending wheel is rotatably mounted on the slider; Under the action of the transmission assembly, the bending wheel can move along the guide groove.

4. The H-beam bending device according to claim 3, characterized in that: The molding die also includes a first mounting plate and a second mounting plate installed in parallel on the workbench, a telescopic cylinder is provided on the first mounting plate, an output end of the telescopic cylinder is connected to the movable mold, and the fixed mold is installed on the second mounting plate.

5. A method for using an H-beam bending processing device, characterized in that: The H-beam bending processing device according to any one of claims 2 to 4 is used, When the processing device is used to bend the web of an H-shaped steel, the method of use is as follows: S1. Separate the fixed mold and the movable mold, place the H-shaped steel in an "I" shape, and then let the fixed mold and the movable mold act on the web of the H-shaped steel; S2, controlling the position of the bending wheel through the second piston rod so that the side of the bending wheel acts on the web of the H-beam; S3, by adjusting the lifting frame, the first guide rail system and the second guide rail system, the side of the rolling wheel acts on the web of the H-shaped steel; S4. The fixed die and the movable die are used to extrude and bend the middle part of the H-shaped steel through the telescopic cylinder. Under the action of the transmission assembly, the bending wheels are used to bend both sides of the H-shaped steel to achieve synchronous bending. S5. During the bending process of the H-beam, the first guide rail system and the second guide rail system are used to control the rolling wheel to roll back and forth on the surface of the H-beam until the bending of the H-beam is completed.

6. A method for using an H-beam bending device, characterized in that: The H-beam bending processing device according to any one of claims 2 to 4 is used, When the processing device is used to bend the flange plate of the H-shaped steel, the method of use is as follows: S1. Separate the fixed mold and the movable mold, place the H-shaped steel in an "H" shape, and then let the fixed mold and the movable mold act on the flange plate of the H-shaped steel; S2, controlling the position of the bending wheel through the second piston rod so that the upper end surface of the bending wheel acts between the two flange plates of the H-beam; S3, by adjusting the lifting frame, the first guide rail system and the second guide rail system, the lower end surface of the rolling wheel acts between the two flange plates of the H-shaped steel; S4. The fixed die and the movable die are used to extrude and bend the middle part of the H-shaped steel through the telescopic cylinder. Under the action of the transmission assembly, the bending wheels are used to bend both sides of the H-shaped steel to achieve synchronous bending. S5. During the bending process of the H-beam, the first guide rail system and the second guide rail system are used to control the rolling wheel to roll back and forth on the surface of the H-beam until the bending of the H-beam is completed.

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