A pipe bending apparatus

Abstract

The application relates to a pipe bending device and belongs to the field of pipe processing equipment, which comprises a workbench, a supporting piece for supporting a pipe is arranged on the workbench, the supporting piece is arranged at one end of the workbench, a bending piece for bending the pipe is arranged at the other end, the pipe is arranged above the workbench, the pipe is arranged in the length direction of the workbench, the pipe is connected with the supporting piece and the bending piece respectively, and a clamping piece for clamping the pipe is arranged on the side of the supporting piece close to the bending piece. The application has the effect of improving bending stability.

Description

Technical Field

[0001] This application relates to the field of pipe processing equipment, and in particular to a pipe bending device. Background Technology

[0002] Pipe bending machines are widely used in various industries, such as automobile manufacturing, aerospace, construction, and petrochemicals. They can be used to produce pipes, pipelines, and pipe supports of various curved shapes. The advantages of pipe bending machines include high efficiency, precision, and stability; they can meet complex bending requirements and improve production efficiency and product quality.

[0003] A pipe bending machine is a mechanical device used to bend metal pipes into desired shapes. It typically consists of a frame, bending dies, a hydraulic system, and a control system. The working principle of a pipe bending machine is to place the metal pipe in the bending die, and then apply force through the hydraulic system, causing the pipe to bend under the action of the die. The control system can adjust parameters such as bending angle, bending radius, and bending speed to meet different bending requirements.

[0004] Regarding the aforementioned technologies, during the bending process of metal pipes, the pipe bending machine, which is fixed in the frame, is forcibly pulled by the bending die. Over time, this can easily cause structural damage to the equipment that fixes the pipe bending, thereby reducing the service life of the pipe bending equipment. Summary of the Invention

[0005] In order to improve the situation where the pipe located at the frame fixing point is forcibly pulled during the pipe bending process, which affects the service life of the equipment, this application provides a pipe bending device.

[0006] This application provides a pipe bending device, which adopts the following technical solution: A pipe bending device includes a workbench with a support member for supporting a pipe at one end and a bending member for bending the pipe at the other end. The pipe is positioned above the workbench and extends along the length of the workbench. The pipe is connected to the support member and the bending member respectively. A clamping member for holding the pipe is provided on the side of the support member near the bending member.

[0007] By adopting the above technical solution, when it is necessary to bend the pipe, the worker first fixes the pipe to the support, and then starts the bending device. The bending device bends the pipe. By controlling the clamping device, the clamping force on the pipe is changed. When bending the pipe, the pipe located in the support will continue to move forward. At this time, the force of the clamping device is adjusted to keep the pipe in a clamped state, which facilitates the transportation of the pipe. When the bending of the pipe is finished, the clamping device is adjusted again to loosen the clamping device, which facilitates reset and helps to improve the stability of the equipment.

[0008] Optionally, the support includes a sliding plate and a fixed tube. The sliding plate is vertically disposed on the upper end face of the worktable. A through hole is provided on the sliding plate. The fixed tube is connected to the through hole of the sliding plate and is perpendicular to the sliding plate. The fixed tube is disposed on the side of the sliding plate near the bent part. A sliding groove is provided on the upper end face of the worktable. A sliding screw is rotatably connected in the sliding groove. The sliding plate is threadedly connected to the sliding screw and the sliding plate is slidably connected to the worktable.

[0009] By adopting the above technical solution, when the pipe needs to be transported forward, the worker drives the sliding screw to rotate, thereby causing the sliding plate to slide on the upper surface of the workbench, thus moving the pipe. This is easy to understand and implement, and helps to improve work efficiency.

[0010] Optionally, the bending component includes a first mold and a second mold for bending the pipe. The first mold is disposed on the upper surface of the workbench. A central rotating shaft is coaxially fixedly connected to the center of the first mold. The central rotating shaft passes through the workbench and is connected to a rotating motor. The output shaft of the rotating motor is coaxially fixedly connected to the central rotating shaft. An extension plate is connected to the bottom end of the first mold. The extension plate is slidably connected to the workbench. A fixing plate is fixedly connected to the upper surface of the extension plate. The second mold is disposed on the upper surface of the fixing plate. The second mold is slidably connected to the fixing plate. A bending cylinder is provided on the side of the second mold away from the first mold. The piston rod of the bending cylinder is perpendicular to the second mold. When the pipe is bent, the first mold and the second mold abut against each other, and the pipe is located between the first mold and the second mold.

[0011] By adopting the above technical solution, when the pipe needs to be bent, the operator first starts the bending cylinder, so that the first mold and the second mold come into contact, and the pipe is located between the first mold and the second mold. Then, the rotating motor is started, and the rotating motor drives the pipe to move, thereby realizing the bending of the pipe. This achieves automated processing and helps to improve work efficiency.

[0012] Optionally, a stabilizing plate is provided on the side of the sliding plate near the first mold. The stabilizing plate extends along the length of the workbench and is vertically arranged on the upper surface of the workbench. A stabilizing cylinder is provided on one side of the stabilizing plate and is fixedly connected to the upper surface of the workbench. The piston rod of the stabilizing cylinder is vertically arranged with the stabilizing plate. A limiting block is fixedly connected on the side of the stabilizing plate away from the stabilizing cylinder. A limiting groove adapted to the pipe is opened on the side of the limiting block away from the stabilizing plate. The stabilizing plate is slidably connected to the workbench.

[0013] By adopting the above technical solution, when the pipe needs to be bent, the staff starts the stabilizing cylinder. The piston rod of the stabilizing cylinder pushes the stabilizing plate to move, which in turn drives the limiting block to move, so that the pipe is located in the limiting groove of the limiting block. This makes the pipe move more smoothly during the bending process, which helps to improve the stability of the structure.

[0014] Optionally, the clamping component includes a support plate, which is fixedly connected to the top of the fixed tube. The support plate is vertically arranged, and a top plate is fixedly connected to the top of the support plate. The top plate is horizontally arranged, and one side of the top plate is fixedly connected to the support plate. Two side plates are fixedly connected to both ends of the top plate, and the two side plates are horizontally arranged and vertically arranged at both ends of the top plate. The lower end of each side plate has a protrusion, which is arranged opposite to each other. Each protrusion has a sliding groove, which extends along the length of the top plate. A positioning plate is provided between the two side plates. The positioning plate is horizontally arranged, and two clamping cylinders are provided on the side of the positioning plate near the top plate. The piston rods of the two clamping cylinders are... A pressure plate is fixedly connected through the positioning plate. Both ends of the pressure plate are equipped with sliders for sliding on the pressure plate. A first linkage rod is provided on the side of the slider away from the worktable. One end of the first linkage rod is rotatably connected to the slider. The other end of the first linkage rod away from the slider is rotatably connected to the side plate. A second linkage rod is provided on the side of the slider close to the worktable. One end of the second linkage rod is rotatably connected to the slider. A sliding rod is provided on the other end of the second linkage rod away from the slider. One end of the sliding rod is rotatably connected to the second linkage rod. The sliding rod is slidably connected to the raised sliding groove. A clamping plate for clamping the pipe is fixedly connected to the other end of the sliding rod away from the second linkage rod. The two clamping plates are arranged opposite each other.

[0015] By adopting the above technical solution, when it is necessary to clamp the pipe, the operator starts the clamping cylinder. The piston rod of the clamping cylinder drives the pressure plate to move. The movement of the pressure plate causes the sliders at both ends of the pressure plate to move towards or away from each other on the pressure plate. Through the transmission of the first and second connecting rods, the sliders cause the two clamping plates to move towards or away from each other, thereby realizing the operation of clamping the pipe. The operator drives the clamping plates to clamp the pipe by using the clamping cylinder, which reduces the labor consumption and at the same time achieves the relative fixation of the fixed pipe and the pipe material, preventing the pipe from being forcibly pulled and improving the stability of the pipe when bending.

[0016] Optionally, a drive wheel is coaxially fixedly connected to one end of the central rotating shaft near the rotating motor. A driven wheel is provided inside the worktable. The drive wheel and the driven wheel are connected by belt drive. A first connecting pipe is provided above the driven wheel. A second connecting pipe is provided above the first connecting pipe. The second connecting pipe is connected to the sliding screw through a bevel gear pair. Both the first and second connecting pipes are hollow cavities. Four connecting holes are opened on the upper end face of the second connecting pipe. All connecting holes extend along the length direction of the second connecting pipe. Four connecting grooves are opened on the upper end face of the first connecting pipe. All connecting grooves extend along the length direction of the first connecting pipe. A linkage rod is provided inside the first and second connecting pipes. Four connecting strips are provided on the outside of the linkage rod. The four connecting strips are located at the four connecting grooves of the first connecting pipe and the four connecting holes of the second connecting pipe, respectively.

[0017] By adopting the above technical solution, when pipe bending is required, the operator starts the rotating motor. Driven by the rotating motor, the pipe is bent. The rotation of the rotating motor drives the drive wheel to rotate, and under the action of the belt, it drives the driven wheel to move. The driven wheel drives the sliding screw to rotate, thereby realizing the synchronous movement of the first mold and the sliding plate. This prevents the pipe from being forcibly pulled out of the sliding plate, which helps to improve the stability of the structure. Furthermore, by setting a linkage rod, the operator can pull the linkage rod to separate the transmission connection between the driven wheel and the sliding screw, which facilitates resetting and improves work efficiency.

[0018] Optionally, a pull rod is fixedly connected to the end of the linkage rod away from the driven wheel, and the end of the pull rod away from the driven wheel is vertically set through the worktable.

[0019] By adopting the above technical solution, when it is necessary to lift the linkage rod, the staff can perform the above operation by lifting the rod, which is easy to understand and implement and helps to improve work efficiency.

[0020] Optionally, a knob is coaxially fixedly connected to the end of the sliding screw away from the driven wheel, and an operating groove is provided on the upper surface of the worktable, with the knob located in the operating groove of the worktable.

[0021] By adopting the above technical solution, when the equipment needs to be reset, the operator first pulls the linkage rod to separate the sliding screw from the driven wheel, then starts the rotating motor to reset the first mold, and then rotates the knob to reset the sliding plate. The process is clear and easy to implement, which helps to improve work efficiency.

[0022] In summary, this application includes at least one of the following beneficial technical effects of the pipe bending equipment: 1. By setting up a workbench, support components, bending components, and clamping components, when it is necessary to bend the pipe, the operator first fixes the pipe to the support components, and then starts the bending components to bend the pipe. By controlling the clamping components, the clamping force on the pipe can be changed. When bending the pipe, the pipe located in the support components will continue to move forward. At this time, the force of the clamping components can be adjusted to keep the pipe in a clamped state, which facilitates the transportation of the pipe. When the bending of the pipe is finished, the clamping components can be adjusted again to loosen the clamping components, which facilitates reset and improves the stability of the equipment. 2. By setting up a driving wheel, driven wheel, first connecting pipe, second connecting pipe, linkage rod, and connecting bar, when pipe bending is required, the operator starts the rotating motor. Driven by the rotating motor, the pipe bending is achieved. The rotation of the rotating motor drives the driving wheel to rotate, and under the action of the belt, it drives the driven wheel to move. The driven wheel drives the sliding screw to rotate, thereby achieving synchronous movement of the first mold and the sliding plate. This prevents the pipe from being forcibly pulled out of the sliding plate, which helps to improve the stability of the structure. Furthermore, by setting up the linkage rod, the operator can pull the linkage rod to separate the transmission connection between the driven wheel and the sliding screw, which is convenient for resetting and helps to improve work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a pipe bending device.

[0024] Figure 2 This is a cross-sectional structural diagram of a pipe bending device.

[0025] Figure 3 This is a schematic diagram highlighting the clamping component in the embodiments of this application.

[0026] Figure 4 This is a structural schematic diagram highlighting the linkage relationship between the first connecting pipe and the second connecting pipe in the embodiments of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Pipe; 2. Support component; 21. Sliding plate; 22. Fixed pipe; 23. Sliding screw; 3. Bending component; 31. First mold; 32. Second mold; 33. Rotary motor; 34. Extension plate; 35. Fixed plate; 36. Bending cylinder; 37. Central rotating shaft; 4. Clamping component; 41. Support plate; 42. Top plate; 43. Side plate; 44. Positioning plate; 45. Clamping cylinder; 46. ​​Pressure plate; 47. Slider; 471. First connecting rod; 472. Second connecting rod; 473. Sliding rod; 474. Clamping plate; 48. Protrusion; 5. Stabilizing component; 51. Stabilizing plate; 52. Stabilizing cylinder; 53. Limiting block; 6. Synchronous drive component; 61. Driving wheel; 62. Driven wheel; 63. First connecting pipe; 64. Second connecting pipe; 65. Linkage rod; 66. Pull rod; 67. Knob; 68. Connecting strip. Detailed Implementation

[0028] The present application will be further described in detail below with reference to all the accompanying drawings.

[0029] This application discloses a pipe bending device.

[0030] Reference Figure 1 and Figure 2A pipe bending device includes a worktable 1, a support 2, a bending component 3, a clamping component 4, a stabilizing component 5, and a synchronous drive component 6. The worktable 1 is horizontally arranged, the support 2 is located at one end of the worktable 1, the bending component 3 is located at the other end of the worktable 1, the pipe 11 is located directly above the worktable 1, and the pipe 11 passes between the support 2 and the bending component 3. The clamping component 4 is connected to both the support 2 and the bending component 3. The bending component 3 is connected to the support 2. The stabilizing component 5 is located on the upper surface of the worktable 1 and is connected to the pipe 11. The synchronous drive component 6 is connected to both the support 2 and the bending component 3 and is located inside the worktable 1. The workbench 1 supports other components in the equipment, the support 2 supports one end of the pipe 11, the bending component 3 supports the other end of the pipe 11 and performs bending, the clamping component 4 clamps and fixes the pipe 11, the stabilizing component 5 enhances the stability of the pipe 11 during bending, and the synchronous drive component 6 ensures the synchronous drive of the bending component 3 and the support 2.

[0031] Reference Figure 1 and Figure 2 The support component 2 includes a sliding plate 21, a fixed tube 22, and a sliding screw 23. The sliding plate 21 is vertically disposed on the upper end face of the workbench 1. The fixed plate 35 is disposed on the side of the sliding plate 21. The fixed tube 22 is vertically disposed with the sliding plate 21. The sliding plate 21 has a through hole. The fixed tube 22 is a hollow cavity and is connected to the through hole of the sliding plate 21. The upper end face of the workbench 1 has a sliding groove. The sliding screw 23 is rotatably connected to the sliding groove of the workbench 1. The sliding plate 21 is threadedly connected to the sliding screw 23. The sliding plate 21 is slidably connected to the upper end face of the workbench 1.

[0032] Reference Figure 1 and Figure 2 When the pipe 11 needs to be bent, the worker first fixes one end of the pipe 11 to the connection between the sliding plate 21 and the fixed pipe 22, and the other end to the bending component 3. Then the bending component 3 is started, and the bending component 3 achieves the bending process of the pipe 11. During the bending process of the pipe 11, the pipe 11 located at one end of the fixed pipe 22 will move synchronously under the drive of the sliding plate 21. The sliding plate 21 is driven to slide on the upper surface of the workbench 1 by the rotation of the sliding screw 23. The synchronous movement of the pipe 11 is mainly fixed by the fixing action of the clamping component 4, so that the pipe 11 is relatively fixed to the fixed plate 35.

[0033] Reference Figure 1 and Figure 2The bending component 3 includes a first mold 31, a second mold 32, a rotary motor 33, an extension plate 34, a fixing plate 35, and a bending cylinder 36. The first mold 31 is located on the upper surface of the workbench 1, at the end of the workbench 1 away from the sliding plate 21. A central rotating shaft 37 is coaxially fixedly connected to the center of the first mold 31. The rotary motor 33 is located inside the workbench 1, and the output shaft of the rotary motor 33 is coaxially fixedly connected to the central rotating shaft 37. The extension plate 34 is fixedly connected to the bottom end of the first mold 31. The extension plate 34 is connected to the workbench 1. The worktable 1 is slidably connected, the fixed plate 35 is fixedly connected to the upper end face of the extension plate 34, the second mold 32 is set on the upper end face of the fixed plate 35, the second mold 32 is slidably connected to the fixed plate 35, the bending cylinder 36 is set on the side of the second mold 32 away from the first mold 31, the piston rod of the bending cylinder 36 is set perpendicular to the second mold 32, when the pipe 11 is bent, the first mold 31 and the second mold 32 abut against each other, and the pipe 11 is located between the first mold 31 and the second mold 32.

[0034] Reference Figure 1 and Figure 2 When the pipe 11 needs to be bent, the operator first starts the bending cylinder 36, so that the first mold 31 and the second mold 32 come into contact, and the pipe 11 is located between the first mold 31 and the second mold 32. Then the rotating motor 33 is started, and the rotating motor 33 drives the pipe 11 to move, thereby realizing the bending of the pipe 11. This realizes the automated processing and helps to improve work efficiency.

[0035] Reference Figure 1 The stabilizing component 5 includes a stabilizing plate 51, a stabilizing cylinder 52, and a limiting block 53. The stabilizing plate 51 is disposed on the side of the sliding plate 21 near the first mold 31. The stabilizing plate 51 extends along the length of the workbench 1 and is vertically disposed on the upper surface of the workbench 1. The stabilizing cylinder 52 is disposed on one side of the stabilizing plate 51 and is fixedly connected to the upper surface of the workbench 1. The piston of the stabilizing cylinder 52 is vertically disposed with respect to the stabilizing plate 51. The limiting block 53 is disposed on the side of the stabilizing plate 51 away from the stabilizing cylinder 52. The side of the limiting block 53 away from the stabilizing plate 51 has a limiting groove adapted to the pipe 11. The stabilizing plate 51 is slidably connected to the workbench 1.

[0036] Reference Figure 1 When the pipe 11 needs to be bent, the staff starts the stabilizing cylinder 52. The piston rod of the stabilizing cylinder 52 pushes the stabilizing plate 51 to move, which in turn drives the limiting block 53 to move, so that the pipe 11 is located in the limiting groove of the limiting block 53, making the movement of the pipe 11 more stable during the bending process, which is conducive to improving the stability of the structure.

[0037] Reference Figure 1 and Figure 3The clamping component 4 includes a support plate 41, a top plate 42, two side plates 43, a positioning plate 44, two clamping cylinders 45, and a pressure plate 46. The support plate 41 is fixedly connected to the top of the fixed tube 22 and is vertically arranged. The top plate 42 is fixedly connected to the top of the support plate 41 and is horizontally arranged on the side of the support plate 41 away from the sliding plate 21. The two side plates 43 are fixedly connected to both ends of the top plate 42, and are horizontally arranged and perpendicular to the top plate 42. The lower end of each side plate 43 is provided with a protrusion 48, which is arranged opposite to each other. Each protrusion 48 has a sliding groove that extends along the length of the top plate 42. The positioning plate 44 is arranged between the two side plates 43 and is parallel to the top plate 42. The two clamping cylinders 45 are arranged on the side of the positioning plate 44 near the top plate 42. Piston rods are all fixedly connected to the positioning plate 46 through the positioning plate 44. Both ends of the pressure plate 46 are provided with sliders 47 for sliding on the pressure plate 46. The side of the slider 47 away from the worktable 1 is provided with a first connecting rod 471. One end of the first connecting rod 471 is rotatably connected to the slider 47. The end of the first connecting rod 471 away from the slider 47 is rotatably connected to the side plate 43. The side of the slider 47 close to the worktable 1 is provided with a second connecting rod 472. One end of the second connecting rod 472 is rotatably connected to the slider 47. The end of the second connecting rod 472 away from the slider 47 is provided with a sliding rod 473. One end of the sliding rod 473 is rotatably connected to the second connecting rod 472. The sliding rod 473 is slidably connected to the sliding groove of the protrusion 48. The end of the sliding rod 473 away from the second connecting rod 472 is fixedly connected with a clamping plate 474 for clamping the pipe 11. The two clamping plates 474 are arranged opposite to each other.

[0038] Reference Figure 1 and Figure 3 When it is necessary to clamp the pipe 11, the operator starts the clamping cylinder 45. The piston rod of the clamping cylinder 45 drives the pressure plate 46 to move. The movement of the pressure plate 46 causes the sliders 47 at both ends of the pressure plate 46 to move towards or away from each other on the pressure plate 46. The sliders 47 are driven by the first linkage rod 471 and the second linkage rod 472 to make the two clamping plates 474 move towards or away from each other, thereby realizing the operation of clamping the pipe 11. The operator drives the clamping plates 474 to clamp the pipe 11 by the clamping cylinder 45, which reduces the labor consumption and at the same time realizes the relative fixation of the fixed pipe 22 and the pipe 11, preventing the pipe 11 from being forcibly pulled and improving the stability of the pipe 11 when bending.

[0039] Reference Figure 2As shown in the figure, the synchronous drive component 6 includes a drive wheel 61, a driven wheel 62, a first connecting pipe 63, a second connecting pipe 64, a linkage rod 65, a pull rod 66, and a knob 67. The drive wheel 61 is coaxially fixedly connected to the end of the central rotating shaft 37 near the rotating motor 33. The driven wheel 62 is disposed inside the worktable 1. The drive wheel 61 and the driven wheel 62 are connected by belt drive. The first connecting pipe 63 is disposed above the driven wheel 62, and the second connecting pipe 64 is disposed above the first connecting pipe 63. The end of the second connecting pipe 64 away from the driven wheel 62 is connected to the sliding screw 23 through a bevel gear pair. Both the first connecting pipe 63 and the second connecting pipe 64 are hollow cavities. Four connecting holes are opened on the upper end face of the second connecting pipe 64. Extending along the length of the second connecting pipe 64, the upper end face of the first connecting pipe 63 has four connecting grooves, all extending along the length of the first connecting pipe 63. The linkage rod 65 is located inside the first connecting pipe 63 and the second connecting pipe 64. Four connecting strips 68 are provided on the outside of the linkage rod 65. The four connecting strips 68 are respectively located at the four connecting grooves of the first connecting pipe 63 and the four connecting holes of the second connecting pipe 64. The pull rod 66 is located at the end of the linkage rod 65 away from the driven wheel 62. The pull rod 66 passes through the worktable 1 and is vertically arranged. The knob 67 is coaxially fixedly connected to the end of the sliding screw 23 away from the driven wheel 62. The upper end face of the worktable 1 has an operating groove, and the knob 67 is located in the operating groove of the worktable 1.

[0040] Reference Figure 2 and Figure 4 When pipe 11 needs to be bent, the operator starts the rotating motor 33. Driven by the rotating motor 33, the pipe 11 is bent. The rotating motor 33 drives the drive wheel 61 to rotate, and under the action of the belt, it drives the driven wheel 62 to move. The driven wheel 62 drives the sliding screw 23 to rotate, thereby realizing the synchronous movement of the first mold 31 and the sliding plate 21. This prevents the pipe 11 from being forcibly pulled out of the sliding plate 21, which helps to improve the stability of the structure. In addition, by setting the linkage rod 65, the operator can pull the pull rod 66 to separate the transmission connection between the driven wheel 62 and the sliding screw 23, which facilitates resetting. When the equipment needs to be reset, the operator first pulls the linkage rod 65 to separate the sliding screw 23 from the driven wheel 62, then starts the rotating motor 33 to reset the first mold 31, and then rotates the knob 67 to reset the sliding plate 21. The process is clear and easy to implement, which helps to improve work efficiency.

[0041] The implementation principle of a pipe bending device according to an embodiment of this application is as follows: When it is necessary to bend the pipe 11, the operator first fixes one end of the pipe 11 on the sliding plate 21, and sets the other end between the first mold 31 and the second mold 32. Then, the first mold 31 and the second mold 32 are activated to abut against each other, and the pipe 11 is located between the first mold 31 and the second mold 32. Then, the rotating motor 33 is activated, and the rotating motor 33 drives the pipe 11 to move, thereby realizing the bending process of the pipe 11. Through the clamping cylinder 45, the clamping plates 474 are moved towards or away from each other. When bending the pipe 11, the pipe 11 located in the sliding plate 21 will continue to move forward. At this time, the force of the clamping member 4 is adjusted so that the pipe 11 is in a clamping state, which facilitates the transportation of the pipe 11. When the bending of the pipe 11 is finished, the clamping member 4 is adjusted again so that the clamping member 4 is in a loose state, which facilitates the reset.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe bending device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a support member (2) for supporting the pipe (11). The support member (2) is located at one end of the workbench (1), and the other end is provided with a bending member (3) for bending the pipe (11). The pipe (11) is located above the workbench (1) and extends along the length of the workbench (1). The pipe (11) is connected to the support member (2) and the bending member (3) respectively. The support member (2) is provided with a clamping member (4) for clamping the pipe (11) on the side near the bending member (3). The support member (2) includes a sliding plate (21) and a fixed tube (22). The sliding plate (21) is vertically arranged on the upper end face of the workbench (1). A through hole is provided on the sliding plate (21). The fixed tube (22) is connected to the through hole of the sliding plate (21). The fixed tube (22) is vertically arranged with the sliding plate (21). The fixed tube (22) is located on the side of the sliding plate (21) close to the bent part (3). A sliding groove is provided on the upper end face of the workbench (1). A sliding screw (23) is rotatably connected in the sliding groove. The sliding plate (21) is threadedly connected to the sliding screw (23). The sliding plate (21) is slidably connected to the workbench (1). The bending component (3) includes a first mold (31) and a second mold (32) for bending the tube (11). The first mold (31) is set on the upper surface of the workbench (1). A central rotating shaft (37) is coaxially fixedly connected to the center of the first mold (31). The central rotating shaft (37) passes through the workbench (1) and is connected to a rotating motor (33). The output shaft of the rotating motor (33) is coaxially fixedly connected to the central rotating shaft (37). An extension plate (34) is connected to the bottom end of the first mold (31). The extension plate (34) is slidably connected to the workbench (1). A fixed plate (35) is fixedly connected to the upper end face of the extension plate (34). The second mold (32) is set on the upper end face of the fixed plate (35). The second mold (32) is slidably connected to the fixed plate (35). A bending cylinder (36) is provided on the side of the second mold (32) away from the first mold (31). The piston rod of the bending cylinder (36) is set perpendicular to the second mold (32). When the pipe (11) is bent, the first mold (31) and the second mold (32) abut against each other. The pipe (11) is located between the first mold (31) and the second mold (32). The central rotating shaft (37) is coaxially fixedly connected to a drive wheel (61) near the end of the rotating motor (33). A driven wheel (62) is provided inside the worktable (1). The drive wheel (61) and the driven wheel (62) are connected by belt drive. A first connecting pipe (63) is provided above the driven wheel (62). A second connecting pipe (64) is provided above the first connecting pipe (63). The second connecting pipe (64) is connected to the sliding screw (23) through a bevel gear pair. Both the first connecting pipe (63) and the second connecting pipe (64) are hollow cavities. (64) Four connecting holes are provided on the upper end face. The connecting holes are all extended along the length direction of the second connecting pipe (64). Four connecting grooves are provided on the upper end face of the first connecting pipe (63). The connecting grooves are all extended along the length direction of the first connecting pipe (63). A linkage rod (65) is provided inside the first connecting pipe (63) and the second connecting pipe (64). Four connecting strips (68) are provided on the outside of the linkage rod (65). The four connecting strips (68) are located at the four connecting grooves of the first connecting pipe (63) and the four connecting holes of the second connecting pipe (64). The end of the linkage rod (65) away from the driven wheel (62) is fixedly connected to a pull rod (66), and the end of the pull rod (66) away from the driven wheel (62) is vertically set through the workbench (1).

2. The pipe bending device according to claim 1, characterized in that: The sliding plate (21) is provided with a stabilizing plate (51) on the side near the first mold (31). The stabilizing plate (51) extends along the length of the workbench (1) and is vertically arranged on the upper surface of the workbench (1). A stabilizing cylinder (52) is provided on one side of the stabilizing plate (51). The stabilizing cylinder (52) is fixedly connected to the upper surface of the workbench (1). The piston rod of the stabilizing cylinder (52) is vertically arranged with the stabilizing plate (51). A limiting block (53) is fixedly connected on the side of the stabilizing plate (51) away from the stabilizing cylinder (52). A limiting groove adapted to the pipe (11) is opened on the side of the limiting block (53) away from the stabilizing plate (51). The stabilizing plate (51) is slidably connected to the workbench (1).

3. The pipe bending device according to claim 1, characterized in that: The clamping member (4) includes a support plate (41), which is fixedly connected to the top of the fixing tube (22). The support plate (41) is vertically arranged, and a top plate (42) is fixedly connected to the top of the support plate (41). The top plate (42) is horizontally arranged, and one side of the top plate (42) is fixedly connected to the support plate (41). Two side plates (43) are fixedly connected to both ends of the top plate (42). The two side plates (43) are horizontally arranged and vertically arranged on the top plate (41). 2) At both ends, the lower ends of the two side plates (43) are provided with protrusions (48), which are arranged opposite each other. Each protrusion (48) is provided with a sliding groove, which extends along the length of the top plate (42). A positioning plate (44) is provided between the two side plates (43). The positioning plate (44) is horizontally arranged. Two clamping cylinders (45) are provided on the side of the positioning plate (44) near the top plate (42). The piston rods of the two clamping cylinders (45) pass through the positioning plate (44) and are fixedly connected to it. A pressure plate (46) is provided at both ends of which are sliders (47) for sliding on the pressure plate (46). A first connecting rod (471) is provided on the side of the slider (47) away from the worktable (1). One end of the first connecting rod (471) is rotatably connected to the slider (47), and the other end of the first connecting rod (471) away from the slider (47) is rotatably connected to the side plate (43). A second connecting rod (472) is provided on the side of the slider (47) close to the worktable (1). One end of the second linkage rod (472) is rotatably connected to the slider (47). The end of the second linkage rod (472) away from the slider (47) is provided with a sliding rod (473). One end of the sliding rod (473) is rotatably connected to the second linkage rod (472). The sliding rod (473) is slidably connected to the sliding groove of the protrusion (48). The end of the sliding rod (473) away from the second linkage rod (472) is fixedly connected with a clamping plate (474) for clamping the pipe (11). The two clamping plates (474) are arranged opposite to each other.

4. The pipe bending device according to claim 1, characterized in that: A knob (67) is coaxially fixedly connected to one end of the sliding screw (23) away from the driven wheel (62). An operating groove is provided on the upper surface of the worktable (1), and the knob (67) is located in the operating groove of the worktable (1).

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