Steel bending device

Abstract

The invention provides a steel bending device which is characterized by comprising a rack, a forming roller replacing mechanism, a first bending mechanism and a second bending mechanism. Wherein the first bending mechanism and the second bending mechanism are in a clamping shape and are respectively arranged on two sides of a to-be-bent part of to-be-bent steel on the rack; the forming roller replacing mechanism comprises a rotary drum, a clamping piece and a forming roller; the rotary drum is rotatably mounted on the rack; the clamping pieces are annularly distributed on the circumference of the rotary drum; and the forming roller is clamped by a clamping piece, is driven by the rotation of the rotary drum, and is over against the forming roller mounting position of the second bending mechanism. According to the steel bending device, when steel is bent, inner fillets with different radiuses can be formed according to requirements, operation is easy and convenient, multiple steel bending devices do not need to be arranged, cost is lower, and occupied space is smaller.

Description

Technical Field

[0001] The present invention relates to the technical field of steel processing, and in particular to a steel bending device. Background Art

[0002] A steel bending device is a common device used to bend steel materials such as steel pipes, steel plates or steel bars. In related technologies, the steel bending device includes a frame, forming rollers and driving rollers. The forming rollers and driving rollers are arranged on the frame. When the steel needs to be bent, the steel is placed on the frame, and the forming roller is made to abut one side of the steel, and the driving roller is made to abut and push the other side of the steel. The driving roller can then push the steel to bend and deform around the forming roller.

[0003] However, after the existing steel bending device bends the steel, the radius of the inner fillet at the bend is fixed. When inner fillets with different radii need to be formed, different steel bending devices need to be used for processing, which is troublesome to operate. In addition, setting up multiple steel bending devices is costly and takes up a lot of space. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a steel bending device that can form fillets of varying radii when bending steel, as required. The device is simple and convenient to operate, eliminates the need for multiple steel bending devices, and reduces costs and space requirements.

[0005] The present invention provides a steel bending device, characterized in that it comprises a frame, a forming roller replacement mechanism, a first bending mechanism and a second bending mechanism;

[0006] The first bending mechanism and the second bending mechanism are in a clamping shape and are respectively arranged on both sides of the to-be-bent portion of the steel material on the frame;

[0007] The above-mentioned forming roller replacement mechanism comprises a rotating drum, a clamping member and a forming roller;

[0008] The rotating drum is rotatably mounted on the frame;

[0009] The clamping members are arranged in an annular distribution on the circumference of the rotating drum;

[0010] The forming roller is clamped by a clamping member and driven by the rotation of the rotating drum, facing the forming roller installation position of the second bending mechanism.

[0011] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0012] The second bending mechanism is rotatably mounted on the frame, receives the forming roller from the forming roller replacement mechanism and allows the forming roller to be placed across the frame, and includes a pair of mounting frames mounted on both sides of the frame and arranged in opposite directions.

[0013] The above-mentioned mounting frame includes a mounting seat, a plug-in portion and a plug-in drive mechanism;

[0014] The connector is driven by the connector driving mechanism and is connected to the mounting seat in a piston-like manner;

[0015] A forming roller installation position is formed between the two opposite plug-in connectors.

[0016] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0017] Mounting shafts are provided on both sides of the forming roller;

[0018] The above-mentioned installation shaft matches the connector.

[0019] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0020] The above-mentioned mounting frame further includes a second bending mechanism rotating arm and a second bending mechanism rotating arm driving mechanism;

[0021] The second bending mechanism rotating arm has one end rotatably connected to the frame and the other end connected to a mounting base;

[0022] The second bending mechanism rotating arm driving mechanism drives the second bending mechanism rotating arm to rotate relative to the frame.

[0023] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0024] The clamping member includes a mounting arm, a fixed portion, a movable portion and a movable portion driving mechanism;

[0025] Wherein, the above-mentioned mounting arm is provided on the outer peripheral wall of the rotating drum;

[0026] The fixing portion is provided at the end of the mounting arm away from the rotating drum;

[0027] The movable part is movably connected to the mounting arm, forming an openable and closable clamping space on the side opposite to the fixed part, and is driven by the movable part driving mechanism to adjust the size of the clamping space by moving away from and approaching the fixed part.

[0028] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0029] The movable portion is provided with an elastic abutting block on a side facing the fixed portion.

[0030] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0031] The first bending mechanism comprises a driving roller;

[0032] The driving roller and forming roller act on both sides of the steel to be bent respectively.

[0033] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0034] The first bending mechanism comprises a first bending mechanism rotating arm and a first bending mechanism rotating arm driving mechanism;

[0035] The rotating arm of the first bending mechanism has one end rotatably connected to the frame and the other end connected to a driving roller;

[0036] The first bending mechanism rotating arm driving mechanism drives the first bending mechanism rotating arm to rotate relative to the frame.

[0037] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0038] The utility model also comprises a fixed length component for limiting the length of the bent portion of the steel material to be bent.

[0039] Furthermore, the steel bending device provided by the present invention is characterized in that:

[0040] The above-mentioned fixed-length assembly includes a screw rod and a fixed-length plate;

[0041] Wherein, the screw rod is rotatably mounted on the frame;

[0042] The fixed-length plate is threadably connected to the lead screw and is driven by the rotation of the lead screw to move on the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0044] Figure 1 2. It is a structural schematic diagram of a steel bending device according to an embodiment of the present invention;

[0045] Figure 2 This is a working diagram of the steel bending device;

[0046] Figure 3 This is a schematic diagram of the clamp installation;

[0047] Figure 4 is a schematic diagram of the structure of the clamp;

[0048] Figure 5 It is a structural schematic diagram of the forming roller;

[0049] Figure 6 Schematic diagram of the structure of the mounting frame;

[0050] Figure 7 Schematic diagram of the forming roller installed on the mounting frame.

[0051] Among them, the frame 100; the placement groove 101; the mounting frame 200; the mounting seat 201; the plug-in part 202; the second drive part 203; the first rotating arm 204; the third drive part 205; the rotating drum 300; the clamping member 400; the clamp 401; the mounting arm 402; the fixed part 403; the movable part 404; the clamping space 405; the first drive part 406; the concave arc surface 407; the elastic abutment block 408; the opening 409; the forming roller 500; the mounting shaft 501; the socket 502; the drive roller 600; the second rotating arm 601; the fourth drive part 602; the fixed length component 700; the screw rod 701; the fixed length plate 702; the steel material 800. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below. Examples of the above embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0053] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention.

[0054] In the description of the present invention, "a plurality" refers to two or more. The terms "first" and "second" are used solely to distinguish technical features and should not be construed as indicating or implying relative importance, or as implicitly indicating the number or order of the technical features indicated.

[0055] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0056] Reference below Figures 1 to 7 A steel bending device according to an embodiment of the present invention is described.

[0057] refer to Figures 1 to 7As shown, the steel bending device according to an embodiment of the present invention includes a frame 100, a forming roller replacement mechanism 30, a first bending mechanism 60 and a second bending mechanism 20;

[0058] The frame 100 is formed with a placement groove 101 . For example, the placement groove 101 can be provided at the top of the frame 100 . The placement groove 101 is used to place the steel 800 and extend the steel 800 along the length direction of the placement groove 101 .

[0059] The first bending mechanism 60 and the second bending mechanism 20 are in a clamping shape and are respectively arranged on both sides of the to-be-bent portion of the steel material 800 on the frame;

[0060] The first bending mechanism 60 includes a first bending mechanism rotating arm (i.e., a second rotating arm 601) and a first bending mechanism rotating arm driving mechanism (i.e., a fourth driving unit 602); one end of the second rotating arm 601 is rotatably connected to the frame 100, and the other end is connected to a driving roller 600, which is movably provided on the frame 100. For example, the driving roller 600 can move along a straight line or along an arc; the fourth driving unit 602 rotates the second rotating arm 601 relative to the frame 100, specifically as follows:

[0061] refer to Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the frame 100 is provided with two rotatable second rotating arms 601. The two second rotating arms 601 are arranged along the width direction of the placement groove 101, and the rotation axis of the second rotating arms 601 extends along the width direction of the placement groove 101. The two ends of the driving roller 600 are respectively connected to the two second rotating arms 601. A fourth driving unit 602 is provided between the second rotating arms 601 and the frame 100. The fourth driving unit 602 is used to drive the second rotating arms 601 to rotate. For example, the fourth driving unit 602 can be configured as an oil cylinder. When the fourth driving unit 602 is activated, the fourth driving unit 602 can drive the second rotating arms 601 to rotate, and the second rotating arms 601 can drive the driving roller 600 to move. The driving roller 600 can thereby abut and push the steel 800 to bend around the forming roller 500 between the two mounting frames 200, making the operation more convenient and the forming effect better.

[0062] It should be noted that the fourth driving portion 602 may also be a cylinder, an electric push rod or other suitable driving structure. In addition, the driving roller 600 may also be driven by other means, for example, the driving roller 600 may be directly controlled to move by a motor screw mechanism.

[0063] The second bending mechanism 20 is mounted on the frame 100 so as to be rotatable relative to the frame, receives the forming roller 500 from the forming roller replacement mechanism 30 and allows the forming roller to be placed across the frame, and includes a pair of mounting frames 200 mounted on both sides of the frame 100 and arranged opposite to each other, that is, the two mounting frames 200 are arranged on the frame 100 and located on both sides of the width direction of the placement groove 101.

[0064] The mounting frame 200 includes a mounting seat 201, a plug-in portion 202, and a plug-in drive mechanism 203 (i.e., a second drive portion 203). The plug-in 202 is driven by the second drive portion 203 and is connected to the mounting seat 201 in a piston-like manner. The space between the two opposing plug-in portions 202 forms a forming roller mounting position.

[0065] The mounting frame 200 also includes a second bending mechanism rotating arm 204 (i.e., a first rotating arm 204) and a second bending mechanism rotating arm driving mechanism 205 (i.e., a third driving unit 205); the first rotating arm 204 has one end that is rotatably connected to the frame 100, and the other end is connected to the mounting base 201; the third driving unit 205 drives the first rotating arm 204 to rotate relative to the frame 100.

[0066] The details are as follows:

[0067] refer to Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the mounting frame 200 includes a mounting seat 201 and a plug-in portion 202. The plug-in portion 202 is provided on the mounting seat 201 and can be moved and adjusted along the width direction. When one of the forming rollers 500 is located between two mounting frames 200, the two plug-in portions 202 can move in opposite directions until they are plugged into the two mounting shafts 501 of the forming roller 500. For example, the end surface of the mounting shaft 501 can be provided with a plug-in hole 502, and the plug-in portion 202 can be configured as a cylindrical shape. When one of the forming rollers 500 is located between the two mounting frames 200, the two plug-in portions 202 move in opposite directions so that the two plug-in portions 202 can be respectively plugged into the two plug-in holes 502, thereby achieving the connection between the forming roller 500 and the mounting frames 200. When the forming roller 500 needs to be disassembled, the two plug-in portions 202 can be moved away from each other. This is simple and convenient operation, saving time and effort.

[0068] It should be noted that the plug-in portion 202 may also be provided with a plug hole 502 , and the mounting shaft 501 may be inserted into the plug hole 502 .

[0069] refer to Figure 6 and Figure 7As shown, in some embodiments of the present invention, the mounting frame 200 further includes a second driving unit 203, which is disposed on the mounting base 201 and connected to the plug-in portion 202 to drive the plug-in portion 202 to move. For example, the second driving unit 203 can be configured as a cylinder, and the plug-in portion 202 is connected to the piston of the second driving unit 203. When the second driving unit 203 is activated, the second driving unit 203 can control the movement of the plug-in portion 202, thereby achieving a higher degree of automation, simpler and more convenient operation, and saving time and effort.

[0070] It should be noted that the plug-in portion 202 can also be moved manually. After the plug-in portion 202 is moved to be plugged into the socket 502, it can be locked by a limit pin to prevent the plug-in portion 202 from moving freely. In addition, the second driving portion 203 can also be a cylinder, an electric push rod or other suitable driving structure.

[0071] refer to Figure 6 As shown, in some embodiments of the present invention, the mounting frame 200 further includes a first rotating arm 204 and a third driving unit 205. The first rotating arm 204 is rotatably connected to the frame 100, with the rotation axis of the first rotating arm 204 extending along the width direction. The mounting base 201 is disposed on the first rotating arm 204, and the third driving unit 205 is disposed between the first rotating arm 204 and the frame 100 to drive the first rotating arm 204 to rotate. For example, the third driving unit 205 can be configured as a cylinder. When the third driving unit 205 is activated, the third driving unit 205 drives the first rotating arm 204 to rotate, which in turn drives the mounting base 201 to move. In this way, when installing the forming roller 500, the position of the mounting base 201 can be appropriately adjusted, thereby more conveniently rotating the drum 300 so that the corresponding forming roller 500 is positioned between the two mounting bases 201. Furthermore, after the forming roller 500 is mounted on the two mounting seats 201, the positions of the mounting seats 201 can be appropriately adjusted so that the forming roller 500 between the two mounting seats 201 just abuts the steel 800, thereby achieving a better bending effect on the steel 800. Furthermore, the forming roller 500 can be adapted for steels 800 of varying thicknesses, thus providing improved practicality. It should be noted that the third driving unit 205 can also be a pneumatic cylinder, an electric push rod, or other suitable driving structure.

[0072] The forming roller replacement mechanism 30 includes a rotating drum 300, a clamping member 400 and a forming roller 500;

[0073] The drum 300 can be cylindrical and rotatably mounted on the frame 100 around its own axis. For example, the drum 300 can be driven by a motor or manually. The axis of the drum 300 extends along the width direction of the mounting groove 101.

[0074] Multiple clamping members 400 are provided on the outer peripheral wall of the rotating drum 300 and arranged along the circumference of the rotating drum 300. The number of the clamping members 400 varies according to the needs of the application scenario. In this embodiment, four clamping members 400 can be provided, and the four clamping members 400 can be evenly arranged along the circumference of the rotating drum 300.

[0075] refer to Figures 1 to 3 As shown, in some embodiments of the present invention, the clamping member 400 includes two clamps 401, which are arranged along the axial direction of the rotating drum 300. Mounting shafts 501 are provided at both ends of the forming roller 500, and the two mounting shafts 501 are clamped by the two clamps 401. The clamps 401 can clamp the mounting shafts 501 at both ends of the forming roller 500 and can also release the clamping of the mounting shafts 501. Specifically, when the forming roller 500 is not needed, the two mounting shafts 501 at both ends of the forming roller 500 can be clamped by the two clamps 401 of the clamping member 400. When the forming roller 500 is needed, the rotating drum 300 is rotated so that the corresponding forming roller 500 is located between the two mounting frames 200, and then the two clamps 401 release the clamping of the mounting shafts 501. This is simple and convenient operation, saving time and effort.

[0076] It should be noted that the clamping member 400 may also be of other structures. For example, only one clamp 401 may be provided, and the clamp 401 directly clamps the middle portion of the forming roller 500 .

[0077] refer to Figure 4 As shown, in some embodiments of the present invention, the clamp 401 includes a mounting arm 402, a fixed portion 403, a movable portion 404, and a first driving portion 406. The mounting arm 402 is provided on the outer peripheral wall of the rotating drum 300, the fixed portion 403 is provided on the mounting arm 402, the movable portion 404 is hinged to the mounting arm 402, and an openable and closable clamping space 405 is formed between the movable portion 404 and the fixed portion 403. The clamping space 405 is used to install the mounting shaft 501. The first driving portion 406 is provided between the movable portion 404 and the mounting arm 402 to drive the movable portion 404 to rotate. For example, one end of the mounting arm 402 in the longitudinal direction can be connected to the outer peripheral wall of the rotating drum 300, the fixed portion 403, the movable portion 404, and the first driving portion 406 can be provided at the end of the mounting arm 402 away from the rotating drum 300, and the first driving portion 406 can be configured as a cylinder.

[0078] When the forming roller 500 needs to be clamped, the mounting shaft 501 of the forming roller 500 is inserted into the clamping space 405, and then the first driving unit 406 is activated. The first driving unit 406 drives the movable portion 404 to rotate toward the fixed portion 403, causing the clamping space 405 to gradually close. The movable portion 404 and the fixed portion 403 can then cooperate to clamp the mounting shaft 501, thereby clamping the forming roller 500. When the forming roller 500 needs to be released, the first driving unit 406 is activated. The first driving unit 406 drives the movable portion 404 to rotate away from the fixed portion 403, causing the clamping space 405 to gradually open. The mounting shaft 501 can then be removed from the clamping space 405, thereby releasing the clamping of the forming roller 500. The structure is simple and the operation is convenient.

[0079] It should be noted that the first driving part 406 may also be a cylinder, an electric push rod or other suitable driving structures. In addition, the clamp 401 may also be other common clamp structures, which will not be described in detail here.

[0080] refer to Figure 4 As shown, in some embodiments of the present invention, the surface of the fixed portion 403 on the side close to the movable portion 404 is configured as an inwardly concave arc surface 407, and the movable portion 404 is provided with an elastic abutment block 408 on the side close to the fixed portion 403. For example, the radius of the inwardly concave arc surface 407 can be adapted to the radius of the forming roller 500, and the elastic abutment block 408 can be made of elastic rubber or elastic plastic, and the surface of the elastic abutment block 408 on the side close to the fixed portion 403 can be configured as a concave surface.

[0081] In this embodiment, such an arrangement can clamp the forming roller 500 more firmly, achieve a better clamping effect, and prevent the forming roller 500 from being damaged, thereby improving practicality.

[0082] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, an opening 409 is formed between the end of the fixed portion 403 away from the mounting arm 402 and the end of the movable portion 404 away from the mounting arm 402. When the clamp 401 is located on the side of the rotating drum 300 close to the mounting frame 200, the opening 409 faces downward. For example, when the mounting frame 200 is located at the lower left of the rotating drum 300, the opening 409 on the clamp 401 located on the left and lower side of the rotating drum 300 can face generally downward. In this way, when the forming roller 500 is installed between the two mounting frames 200, it is easier to separate the forming roller 500 from the clamp 401, avoiding any jamming.

[0083] Multiple forming rollers 500 are respectively clamped by multiple clamping members 400. For example, when there are four clamping members 400, there can also be four forming rollers 500. The clamping members 400 can be the two ends of the clamping forming roller 500. The axis of the forming roller 500 extends along the width direction of the mounting groove 101. The radii of at least some of the forming rollers 500 are different. For example, the radii of all forming rollers 500 can be different, or the radii of some forming rollers 500 can be different, and the radii of some forming rollers 500 can be the same. The radius of the forming roller 500 corresponds to the radius of the inner fillet that the steel 800 needs to be bent to form.

[0084] During use, by driving the rotating drum 300 to rotate, different forming rollers 500 can be positioned between the two mounting frames 200, so that both ends of the forming roller 500 are respectively mounted on the two mounting frames 200;

[0085] When the steel 800 is placed in the placement groove 101, the forming roller 500 between the two mounting frames 200 can abut one side of the steel 800, and the driving roller 600 can abut and push the other side of the steel 800 during movement, causing the steel 800 to bend and deform around the forming roller 500 between the two mounting frames 200.

[0086] In this embodiment, the radius size of multiple forming rollers 500 can be the same as the common radius sizes of the inner fillet formed after the steel 800 is bent. When the steel 800 needs to be bent, the steel 800 is placed on the placement groove, and the rotating drum 300 is rotated so that the forming roller 500 of the corresponding radius size is located between the two mounting frames 200. Then, the forming roller 500 is separated from the corresponding clamping member 400, and the two ends of the forming roller 500 are respectively connected to the two mounting frames 200. Then, the forming roller 500 between the mounting frames 200 is abutted against one side of the steel 800. Finally, the driving roller 600 is moved, and the driving roller 600 abuts and pushes the other side of the steel 800, so that the steel 800 is bent and deformed around the forming roller 500 between the two mounting frames 200. According to the steel bending device of the embodiment of the present invention, when the steel 800 needs to be bent to form inner fillets of different radii, the rotating drum 300 is rotated and the forming rollers 500 of different radii are installed between the two mounting frames 200. The operation is simple and convenient, and only one steel bending device is required instead of multiple steel bending devices, which has lower costs and takes up less space.

[0087] In addition, considering the limitation of the length of the bent portion of the steel material to be bent, in this embodiment, a fixed length assembly 700 is further provided, which includes a screw rod 701 and a fixed length plate 702; the screw rod 701 is rotatably mounted on the frame 100; the fixed length plate 702 is threadedly connected to the screw rod 701 and is driven by the rotation of the screw rod 701 to reciprocate on the frame 100, as follows:

[0088] refer to Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the steel bending device further includes a fixed length assembly 700, which includes a screw rod 701 and a fixed length plate 702. The screw rod 701 is rotatably mounted on the frame 100 and extends along the length direction of the placement slot 101. The fixed length plate 702 is provided on the frame 100 and can be slidably adjusted along the length direction of the placement slot 101. The fixed length plate 702 is threadedly connected to the screw rod 701. For example, the frame 100 can be provided with a guide rail, which extends along the length direction of the placement slot 101. The fixed length plate 702 is slidably mounted on the guide rail. The fixed length plate 702 can be provided with a threaded hole, and the screw rod 701 is threadedly connected to the threaded hole.

[0089] Before bending the steel 800, the screw rod 701 is rotated. Since the screw rod 701 is threadedly connected to the fixed length plate 702, and the fixed length plate 702 is slidably connected to the frame 100, the screw rod 701 can drive the fixed length plate 702 to move along the length direction of the placement groove 101, thereby adjusting the distance between the fixed length plate 702 and the forming roller 500 between the two mounting frames 200. After the steel 800 is placed in the placement groove 101, one end of the steel 800 can be brought into contact with the fixed length plate 702. In this way, the length of the bent portion of the steel 800 can be known. By moving the fixed length plate 702, the steel 800 can be fixed to different lengths that need to be bent. After bending, the quality of the steel 800 is better and the practicality is better.

[0090] It should be noted that the screw rod 701 can be rotated by a motor or manually. In addition, the length direction mentioned in the present invention refers to the length direction of the placement groove 101, and the width direction of the present invention refers to the width direction of the placement groove 101.

[0091] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A steel bending device, characterized in that: It includes a frame, a forming roller replacement mechanism, a first bending mechanism and a second bending mechanism; Wherein, the first bending mechanism and the second bending mechanism are in a clamping shape and are respectively arranged on both sides of the to-be-bent portion of the steel material to be bent on the frame; The forming roller replacement mechanism comprises a rotating drum, a clamping member and a forming roller; The rotating drum is rotatably mounted on the frame; The clamping members are arranged in an annular distribution on the circumference of the rotating drum; The forming roller is clamped by a clamping member and driven by the rotation of the rotating drum, facing the forming roller installation position of the second bending mechanism.

2. The steel bending device according to claim 1, characterized in that: The second bending mechanism is mounted on the frame so as to be rotatable relative to the frame, receives the forming roller from the forming roller replacement mechanism and allows the forming roller to be placed across the frame, and includes a pair of mounting frames mounted on both sides of the frame and arranged in opposite directions; The mounting frame includes a mounting seat, a plug-in portion and a plug-in drive mechanism; The connector is driven by the connector driving mechanism and is connected to the mounting seat in a piston-like shape; A forming roller installation position is formed between the two opposite plug-in connectors.

3. The steel bending device according to claim 2, characterized in that: Mounting shafts are provided on both sides of the forming roller; The installation shaft matches the plug-in connector.

4. The steel bending device according to claim 2, characterized in that: The mounting frame further includes a second bending mechanism rotating arm and a second bending mechanism rotating arm driving mechanism; Wherein, the second bending mechanism rotating arm has one end rotatably connected to the frame and the other end connected to the mounting base; The second bending mechanism rotating arm driving mechanism drives the second bending mechanism rotating arm to rotate relative to the frame.

5. The steel bending device according to claim 1, characterized in that: The clamping member includes a mounting arm, a fixed portion, a movable portion and a movable portion driving mechanism; Wherein, the mounting arm is provided on the outer peripheral wall of the rotating drum; The fixing portion is provided at an end of the mounting arm away from the rotating drum; The movable part is movably connected to the mounting arm, and forms an openable and closable clamping space on the side opposite to the fixed part. The movable part is driven by the driving mechanism of the movable part, and the size of the clamping space is adjusted by moving away from and approaching the fixed part.

6. The steel bending device according to claim 5, characterized in that: The movable portion is provided with an elastic abutting block on a side facing the fixed portion.

7. The steel bending device according to claim 1, characterized in that: The first bending mechanism comprises a driving roller; The driving roller and the forming roller act on both sides of the steel material to be bent respectively.

8. The steel bending device according to claim 7, characterized in that: The first bending mechanism comprises a first bending mechanism rotating arm and a first bending mechanism rotating arm driving mechanism; Among them, one end of the first bending mechanism rotating arm is rotatably connected to the frame, and the other end is connected to a driving roller; the first bending mechanism rotating arm driving mechanism drives the first bending mechanism rotating arm to rotate relative to the frame.

9. The steel bending device according to any one of claims 1 to 8, characterized in that: The utility model also comprises a fixed length component for limiting the length of the bent portion of the steel material to be bent.

10. The steel bending device according to claim 9, characterized in that: The fixed-length assembly includes a screw rod and a fixed-length plate; Wherein, the screw rod is rotatably mounted on the frame; The fixed-length plate is threadably connected to the screw rod and is driven by the rotation of the screw rod to move on the frame.

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