A bending device

Abstract

The application discloses a bending device, which solves the technical problem of large error existing in the prior bending mode. The device comprises a base, a clamping structure and a bending structure. The clamping structure comprises a first clamping slot for clamping a workpiece. The bending structure comprises a mounting frame, a rotating disc, two clamping plates and two elastic members. The mounting frame is arranged at intervals with the clamping structure. The rotating disc is rotationally connected with the mounting frame, the two clamping plates are slidingly connected with the side of the rotating disc facing the clamping structure, and the two clamping plates are arranged at intervals to form a second clamping slot. The elastic members are used for enabling the clamping plates to have a tendency of moving towards the center of the rotating disc. When the second clamping slot is in a vertical state, the second clamping slot is coplanar with the first clamping slot. The bending device disclosed by the application can ensure that the bending position is accurately located in the welding seam area and the bending angle is accurately controlled through the scale on the rotating disc, so that the human error is greatly reduced.

Description

Technical Field

[0001] This application belongs to the field of welding technology, specifically relating to a bending device. Background Technology

[0002] To ensure continuous production in the cold rolling mill, the strip steel needs to be connected by welding. After welding, operators must inspect the weld quality, typically using two methods: offline full-cup testing and online crescent-shaped bending testing. Because bending tests have high requirements for weld quality, most production lines currently use crescent-shaped bending tests to verify weld quality.

[0003] Current crescent bending tests primarily rely on clamping one side of the weld with a bench vise and the other side with flat-jaw pliers, or striking the other side with a hammer to bend the crescent to a specified angle, then repeating the bending process in the opposite direction at least twice. However, this method is prone to significant human error: firstly, it cannot guarantee that the bending position is accurately located within the weld area; secondly, the bending angle is difficult to control; and finally, for thicker strips, the bending process may be laborious or even impossible to complete. Therefore, existing bending methods cannot accurately determine the quality of the weld, and the weld is prone to breakage at the leveling machine or rolling mill, affecting the stable operation of the production line. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application discloses a bending device.

[0005] The technical solution adopted to achieve the purpose of this application is as follows: In the first aspect of this application, this utility model discloses a bending device, comprising:

[0006] Base;

[0007] A clamping structure, mounted on the base, the clamping structure including a first clamping slot for clamping the workpiece; and

[0008] A bending structure includes a mounting frame, a rotating disk, two clamping plates, and two elastic elements. The mounting frame is mounted on the base and is spaced apart from the clamping structure. The rotating disk is rotatably connected to the mounting frame. Both clamping plates are slidably connected to the side of the rotating disk facing the clamping structure. The two clamping plates are spaced apart to form a second clamping slot. The two elastic elements are correspondingly arranged with the two clamping plates. The two ends of the elastic elements are respectively connected to the mounting frame and the clamping plates. The elastic elements are used to make the clamping plates tend to move towards the center of the rotating disk.

[0009] When the second clamping seam is in a vertical state, the second clamping seam and the first clamping seam are coplanar.

[0010] In some embodiments, the rotating disk is provided with two parallel sliding grooves, and two clamping plates are provided in one-to-one correspondence with the two sliding grooves, and the clamping plates slide in cooperation with the sliding grooves.

[0011] In some embodiments, a screw is provided on the rotating disk, the screw is screwed to the rotating disk, and one end of the screw extends into the slide groove, and the end of the elastic element away from the clamping plate is connected to the part of the screw that extends into the slide groove.

[0012] In some embodiments, the mounting bracket includes a base plate, a first vertical plate, and a second vertical plate. The base plate is mounted on the base, and the first and second vertical plates are arranged parallel to each other on the base plate. The first vertical plate is located on the side of the second vertical plate opposite to the clamping structure, and the second vertical plate is attached to the clamping structure. The rotating disk is mounted between the first and second vertical plates, and the rotating disk is rotatably engaged with both the first and second vertical plates.

[0013] In some embodiments, the rotating disk is provided with a scale, which is arranged along the circumference of the rotating disk.

[0014] In some embodiments, the clamping structure includes a clamp base, a fixed clamp block, and a sliding clamp block. The clamp base is mounted on the base, the fixed clamp block is fixed to the clamp base, the sliding clamp block is slidably engaged with the clamp base, and the first clamping slot is formed between the sliding clamp block and the fixed clamp block.

[0015] In some embodiments, the clamping structure further includes a threaded control rod that is threadedly connected to the clamp seat and rotatably connected to the sliding clamp block. Rotating the threaded control rod causes the sliding clamp block to move closer to or further away from the fixed clamp block.

[0016] In some embodiments, a pad is provided on the base, and the clamp is mounted on the pad so that when the second clamping slot is in a vertical state, the top of the first clamping slot is connected to the bottom of the second clamping slot.

[0017] In some embodiments, the top of the fixed clamp block is inclined downward at the end opposite to the sliding clamp block, and the inclination angle is equal to or greater than 120 degrees.

[0018] In some embodiments, the top of the cross-section of the fixed clamp block is arc-shaped, and the top of the cross-section of the sliding clamp block is also arc-shaped.

[0019] As can be seen from the above technical solution, the bending device disclosed in this application includes a base, a clamping structure, and a bending structure. The clamping structure is installed on the base and includes a first clamping slot for clamping the workpiece. The bending structure includes a mounting frame, a rotating disk, two clamping plates, and two elastic members. The mounting frame is installed on the base and is spaced apart from the clamping structure. The rotating disk is rotatably connected to the mounting frame, and both clamping plates are slidably connected to the side of the rotating disk facing the clamping structure. The two clamping plates are spaced apart to form a second clamping slot. The two elastic members are correspondingly arranged with the two clamping plates, and the two ends of the elastic members are respectively connected to the mounting frame and the clamping plates. The elastic members are used to make the clamping plates tend to move towards the center of the rotating disk. When the second clamping slot is in a vertical state, the second clamping slot and the first clamping slot are coplanar.

[0020] The bending device disclosed in this application ensures precise alignment of the workpiece position through the cooperation of the clamping structure and the bending structure, avoiding bending errors caused by positional deviations and further improving the accuracy of the bending operation. The precisely designed clamping and bending structures ensure that the bending position is accurately located in the weld area, and the bending angle is precisely controlled by the scale on the rotating disc, thereby greatly reducing human error. Attached Figure Description

[0021] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Figure 1 This is a schematic diagram of the bending device in one or more embodiments of this application;

[0023] Figure 2 for Figure 1 A schematic diagram of the central base;

[0024] Figure 3 for Figure 1 Schematic diagram of the clamping structure;

[0025] Figure 4 for Figure 1 A schematic diagram of the mid-bend structure;

[0026] Figure 5 This is a schematic diagram of a bent structure from another perspective;

[0027] Figure 6 for Figure 1 A schematic diagram of the central rotating disk.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Base; 110. Pad; 200. Clamping structure; 210. First clamping slot; 220. Clamp seat; 230. Fixed clamp block; 240. Sliding clamp block; 250. Threaded control rod; 300. Bending structure; 310. Mounting bracket; 311. Base plate; 312. First vertical plate; 313. Second vertical plate; 314. Reinforcing rib; 320. Rotating disk; 321. Scale; 322. Slide groove; 330. Clamping plate; 331. Second clamping slot; 340. Elastic element; 350. Screw; 360. Handle. Detailed Implementation

[0030] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] This utility model discloses a bending device that can solve the technical problem of large errors in existing bending methods, thereby improving the accuracy and efficiency of weld quality inspection.

[0034] The technical solution of this application will be described in detail below through specific embodiments:

[0035] See Figure 1 , Figure 2 , Figure 3 and Figure 4This application discloses a bending device, which includes a base 100, a clamping structure 200, and a bending structure 300. The clamping structure 200 is mounted on the base 100 and includes a first clamping slot 210 for clamping a workpiece. The bending structure 300 includes a mounting frame 310, a rotating disk 320, two clamping plates 330, and two elastic members 340. The mounting frame 310 is mounted on the base 100 and is spaced apart from the clamping structure 200. The rotating disk 320 is rotatably connected to the mounting frame 310, and both clamping plates 330 are slidably connected to the side of the rotating disk 320 facing the clamping structure 200. The two clamping plates 330 are spaced apart to form a second clamping slot 331. The two elastic members 340 are correspondingly arranged with the two clamping plates 330, and both ends of the elastic members 340 are connected to the mounting frame 310 and the clamping plates 330, respectively. The elastic element 340 is used to give the clamping plate 330 a tendency to move toward the center of the rotating disk 320. When the second clamping slot 331 is in a vertical state, the second clamping slot 331 is coplanar with the first clamping slot 210.

[0036] The bending device disclosed in this embodiment ensures precise alignment of the workpiece position through the cooperation of the clamping structure 200 and the bending structure 300, avoiding bending errors caused by positional deviations and further improving the accuracy of the bending operation. The precisely designed clamping structure 200 and bending structure 300 ensure that the bending position is accurately located in the weld area, and the bending angle is precisely controlled by the scale 321 on the rotating disk 320, thereby greatly reducing human error.

[0037] See Figure 4 and Figure 6 In one embodiment, the rotating disk 320 is provided with two parallel sliding grooves 322, and two clamping plates 330 are provided in one-to-one correspondence with the two sliding grooves 322, and the clamping plates 330 and the sliding grooves 322 are slidably engaged.

[0038] Two parallel grooves 322 on the rotating disk 320 provide precise guidance for the clamping plate 330. The clamping plate 330 slides in conjunction with the grooves 322, ensuring that the clamping plate 330 moves strictly along the trajectory of the grooves 322 during movement. This avoids problems such as inaccurate clamping or uneven bending caused by movement deviation, greatly improving the stability and reliability of the clamping plate 330's movement.

[0039] In one embodiment, a screw 350 is provided on the rotating disk 320, the screw 350 is screwed onto the rotating disk 320, and one end of the screw 350 extends into the slide groove 322. The end of the elastic member 340 opposite to the clamping plate 330 is connected to the part of the screw 350 that extends into the slide groove 322.

[0040] The elastic element 340 is connected to the screw 350, making the installation process relatively simple. The operator only needs to fix one end of the elastic element 340 to the screw 350, and then screw the screw 350 onto the rotating plate 320 to complete the installation. This installation method does not require complicated tools or cumbersome steps, greatly improving installation efficiency and making the installation of the elastic element 340 more convenient.

[0041] In one embodiment, the mounting bracket 310 includes a base plate 311, a first vertical plate 312, and a second vertical plate 313. The base plate 311 is mounted on the base 100, providing a solid foundation support for the entire mounting bracket 310. The first vertical plate 312 and the second vertical plate 313 are arranged parallel to each other on the base plate 311, with the first vertical plate 312 located on the side of the second vertical plate 313 facing away from the clamping structure 200, and the second vertical plate 313 attached to the clamping structure 200. This structure gives the mounting bracket 310 high rigidity and stability, enabling it to withstand large torques and pressures generated during bending, ensuring the stable operation of components such as the rotating disk 320.

[0042] The rotating disk 320 is installed between the first vertical plate 312 and the second vertical plate 313, and the rotating disk 320 is rotatably engaged with both the first vertical plate 312 and the second vertical plate 313. This allows the rotating disk 320 to maintain a high degree of concentricity and perpendicularity during rotation, ensuring the accuracy of the bending operation.

[0043] In one embodiment, the base plate 311 is fixed to the base 100 by four bolts, and a reinforcing rib 314 is provided on the side of the first vertical plate 312 opposite to the second vertical plate 313.

[0044] The base plate 311 is fixed to the base 100 by four bolts. Compared with fixing with a small number of bolts, four bolts can more evenly distribute the force between the base plate 311 and the base 100. During the operation of the bending device, it will be subjected to large torque and pressure. The fixing method of four bolts can effectively prevent the base plate 311 from loosening or shifting due to uneven force, ensuring that the connection between the base plate 311 and the base 100 is firm and reliable.

[0045] The reinforcing rib 314 can effectively improve the bending strength of the first vertical plate 312. During the operation of the bending device, the first vertical plate 312 needs to withstand the torque generated by the rotation of the rotating disk 320 and the force brought by the movement of the clamping plate 330. The setting of the reinforcing rib 314 can prevent the first vertical plate 312 from bending and deforming under force, ensuring that it can stably support the rotating disk 320 and other components.

[0046] See Figure 4 and Figure 5In one embodiment, the rotating disk 320 is provided with a scale 321, which is set along the circumference of the rotating disk 320, providing the operator with an intuitive angle display.

[0047] During bending operations, operators can directly read the values ​​on scale 321 to precisely determine the rotation angle of the rotating disk 320, thereby accurately controlling the bending angle of the workpiece. For example, when it is necessary to bend the workpiece to a specific angle, simply rotate the rotating disk 320 to the corresponding scale 321 position, avoiding bending angle errors caused by inaccurate visual inspection or experience.

[0048] In one embodiment, when the second clamping slot 331 is set vertically, the scale 321 is marked as scale 0, and thereafter a scale 321 value is set every 10 degrees.

[0049] Using the vertical setting of the second clamping seam 331 as the reference for the 0-degree mark 321 provides a clear starting point for the angle measurement and adjustment of the entire bending device. During operation, the operator can clearly understand the initial state represented by the 0-degree mark 321, thus enabling more accurate subsequent angle adjustments. For example, when bending the workpiece to 30 degrees, the operator can directly start from the 0-degree mark 321 and rotate the turntable 320 clockwise or counterclockwise to the 30-degree mark 321 position, avoiding operational errors caused by an unclear reference.

[0050] In one embodiment, the rotary table is provided with a handle 360°, which makes it easy for the operator to rotate the rotary table, thereby driving the workpiece to rotate and achieve bending of the workpiece.

[0051] Operators can easily rotate the turntable by gripping the handle 360 ​​with minimal force. Compared to directly gripping the edge of the turntable, the handle 360 ​​design better distributes the force on the operator's hands, reducing hand fatigue and making operation easier and less strenuous. For example, during prolonged continuous operation of the bending device, the handle 360 ​​allows operators to perform the rotation more comfortably, improving work efficiency.

[0052] See Figure 1 , Figure 2 and Figure 3In one embodiment, the clamping structure 200 includes a clamp base 220, a fixed clamp block 230, and a sliding clamp block 240. The clamp base 220 is mounted on the base 100, providing a stable support foundation for the entire clamping structure 200. The base 100 typically has a large contact area and good rigidity, capable of withstanding large clamping forces without deformation. The fixed clamp block 230 is fixed to the clamp base 220. This fixing method ensures the stable position of the fixed clamp block 230, preventing it from moving or shaking during use, thereby ensuring the stability of the first clamping gap 210 and providing a reliable clamping reference for the workpiece.

[0053] The sliding jaw block 240 slides into the jaw base 220, forming a first clamping gap 210 between the sliding jaw block 240 and the fixed jaw block 230. When the sliding jaw block 240 moves closer to the fixed jaw block 230, the first clamping gap 210 between them can uniformly apply clamping force to the workpiece. This uniform clamping force distribution can prevent the workpiece from deforming or being damaged due to excessive local force, thus ensuring the processing quality and accuracy of the workpiece.

[0054] In one embodiment, the clamping structure 200 further includes a threaded control lever 250. The threaded control lever 250 is threadedly connected to the jaw base 220 and rotatably connected to the sliding jaw block 240. Rotating the threaded control lever 250 causes the sliding jaw block 240 to move closer to or further away from the fixed jaw block 230.

[0055] When the threaded control lever 250 is rotated, the sliding jaw 240 can be slightly displaced due to the transmission characteristics of the thread. This fine-tuning function allows the operator to precisely control the distance between the sliding jaw 240 and the fixed jaw 230 according to the specific requirements of the workpiece, thereby achieving precise clamping of the workpiece. For example, when machining precision mechanical parts, very precise clamping force is required. By fine-tuning the threaded control lever 250, the clamping force can be controlled within a very small error range, ensuring the machining accuracy of the workpiece.

[0056] In one embodiment, a pad 110 is provided on the base 100. The clamp seat 220 is mounted on the pad 110 so that when the second clamping slot 331 is in a vertical state, the top of the first clamping slot 210 is connected to the bottom of the second clamping slot 331.

[0057] In this way, when bending the workpiece, the rotating disk 320 can accurately bend the workpiece at the predetermined position, avoiding deformation in other parts of the workpiece.

[0058] In one embodiment, the top of the fixed clamping block 230 is inclined downwards at the end opposite to the sliding clamping block 240, and the inclination angle is equal to or greater than 120 degrees. The top of the sliding clamping block 240 is also inclined downwards at the end opposite to the fixed clamping block 230, and the inclination angle is equal to or greater than 120 degrees, to prevent interference with the bending of the workpiece. This design provides sufficient clearance for bending deformation that may occur during the processing of the workpiece.

[0059] When a workpiece is bent by an external force, the top of the tilted clamp will not collide or interfere with the bent part of the workpiece, thus avoiding problems such as workpiece damage, reduced processing accuracy, and equipment failure caused by interference.

[0060] The design, with an inclination angle of 120 degrees or greater, allows the clamps to adapt to workpieces bending in different directions and to varying degrees. Whether it's slight elastic deformation or larger plastic deformation, the inclined clamp top provides sufficient space for the workpiece, ensuring it's not restricted during bending. For example, when machining irregularly shaped workpieces prone to irregular bending, this design guarantees normal machining under various bending conditions.

[0061] In one embodiment, the top of the cross-section of the fixed clamping block 230 is arc-shaped, and the top of the cross-section of the sliding clamping block 240 is also arc-shaped, which helps to make the bending process of the workpiece smoother. By designing the top outer edge shape of the fixed clamping block 230 and the sliding clamping block 240, the workpiece can be bent into a predetermined shape.

[0062] Of course, making the top outer edges of the fixed clamp block 230 and the sliding clamp block 240 arc-shaped is only one implementation method in this embodiment. In other implementation methods, it is also possible to set the top outer edges of the fixed clamp block 230 and the sliding clamp block 240 to other shapes so that the workpiece can be bent into other predetermined shapes.

[0063] In one embodiment, the heights of both the fixed clamp block 230 and the sliding clamp block 240 are greater than the height of the clamp body, so as to avoid interference from the clamp body to the bending of the workpiece.

[0064] When the height of the fixed clamp block 230 and the sliding clamp block 240 is greater than the height of the clamp body, the clamp body will not obstruct the bending part of the workpiece during the bending operation. This provides sufficient bending space for the workpiece, allowing it to be bent smoothly according to the preset angle and shape.

[0065] For example, when bending long strip metal workpieces at a large angle, if the clamp body is too high, it may limit the bending radius of the workpiece, resulting in insufficient bending or deformation. The design of the clamp block being higher than the clamp body can effectively avoid this situation and ensure that the shape of the workpiece after bending meets the design requirements.

[0066] In one embodiment, the clamp 220 is fixed to the base 100 by four bolts. By using four bolts to fix the clamp 220 to the base 100, compared to fixing with fewer bolts, various forces acting on the clamp 220 (such as the reaction force when clamping the workpiece, the impact force when bending the workpiece, etc.) can be more evenly transmitted to the base 100.

[0067] Through the above embodiments, this application has the following beneficial effects or advantages: The bending device disclosed in this application, through the precisely designed clamping structure 200 and bending structure 300, can ensure that the bending position is accurately located in the weld area, and the bending angle is precisely controlled by the scale 321 on the rotating disk 320, thereby greatly reducing human error. The mechanical structure design makes the bending process simpler and faster. The operator only needs to clamp the strip steel in the clamping structure 200 and adjust the bending angle to easily complete the bending. The operator can intuitively read and set the bending angle, achieving precise control of the bending angle and improving the consistency and repeatability of the bending quality. The elastic element 340 ensures that the clamping plate 330 is always in contact with the workpiece, thereby further improving the bending quality.

[0068] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0069] Therefore, the above detailed description of the embodiments of the present invention disclosed in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0070] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0071] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0072] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0074] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0075] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A bending device, characterized in that, include: Base; A clamping structure is mounted on the base, and the clamping structure includes a first clamping slot for clamping the workpiece. as well as A bending structure includes a mounting frame, a rotating disk, two clamping plates, and two elastic elements. The mounting frame is mounted on the base and is spaced apart from the clamping structure. The rotating disk is rotatably connected to the mounting frame. Both clamping plates are slidably connected to the side of the rotating disk facing the clamping structure. The two clamping plates are spaced apart to form a second clamping slot. The two elastic elements are correspondingly arranged with the two clamping plates. The two ends of the elastic elements are respectively connected to the mounting frame and the clamping plates. The elastic elements are used to make the clamping plates tend to move towards the center of the rotating disk. When the second clamping seam is in a vertical state, the second clamping seam and the first clamping seam are coplanar.

2. The bending device according to claim 1, characterized in that, The rotating disk is provided with two parallel sliding grooves, and the two clamping plates are provided in one-to-one correspondence with the two sliding grooves, and the clamping plates slide in cooperation with the sliding grooves.

3. The bending device according to claim 2, characterized in that, The rotating disk is provided with a screw, which is screwed onto the rotating disk, and one end of the screw extends into the slide groove. The end of the elastic element away from the clamping plate is connected to the part of the screw that extends into the slide groove.

4. The bending device according to claim 2, characterized in that, The mounting frame includes a base plate, a first vertical plate, and a second vertical plate. The base plate is mounted on the base. The first vertical plate and the second vertical plate are arranged parallel to each other on the base plate. The first vertical plate is located on the side of the second vertical plate away from the clamping structure. The second vertical plate is attached to the clamping structure. The rotating disk is installed between the first vertical plate and the second vertical plate, and the rotating disk is rotatably engaged with both the first vertical plate and the second vertical plate.

5. The bending device according to claim 2, characterized in that, The rotating disk is provided with a scale, which is set along the circumference of the rotating disk.

6. The bending device according to any one of claims 1 to 5, characterized in that, The clamping structure includes a clamp base, a fixed clamp block, and a sliding clamp block. The clamp base is mounted on the base, the fixed clamp block is fixed to the clamp base, the sliding clamp block slides with the clamp base, and the first clamping gap is formed between the sliding clamp block and the fixed clamp block.

7. The bending device according to claim 6, characterized in that, The clamping structure also includes a threaded control rod, which is threadedly connected to the clamp seat and rotatably connected to the sliding clamp block. Rotating the threaded control rod causes the sliding clamp block to move closer to or further away from the fixed clamp block.

8. The bending device according to claim 6, characterized in that, A pad is provided on the base, and the clamp is installed on the pad so that when the second clamping slot is in a vertical state, the top of the first clamping slot is connected to the bottom of the second clamping slot.

9. The bending device according to claim 6, characterized in that, The top of the fixed clamp block is inclined downward at the end opposite to the sliding clamp block, and the inclination angle is equal to or greater than 120 degrees. The top of the sliding clamp block is inclined downward at the end opposite to the fixed clamp block, and the inclination angle is equal to or greater than 120 degrees.

10. The bending device according to claim 6, characterized in that, The top of the cross-section of the fixed clamp block is arc-shaped, and the top of the cross-section of the sliding clamp block is also arc-shaped.

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