Pipe bending device convenient to operate

Abstract

The utility model relates to the technical field of bent pipe machining equipment, in particular to a pipe bending device convenient to operate, which comprises a worktable, a first push plate is mounted on one side of the top of the worktable, a second push plate is mounted on the other side of the top of the worktable, and a second positioning plate is arranged between the first push plate and the second push plate. The ends, close to the second positioning plate, of the first push plate and the second push plate are rotationally connected to the workbench through third positioning pins, and the first push plate, the second push plate and the second positioning plate are located on the same straight line. According to the pipe bending device convenient to operate, a steel pipe can be clamped through the first positioning plate and the second positioning plate which are arranged in the pipe bending device, the steel pipe is bent in a two-end hydraulic clamping mode, only one person is needed for operation, the labor intensity of workers is relieved, oxygen and acetylene heating procedures are omitted, and the production benefit is more than two times that of the original pipe bending device; the steel pipe can be bent by 90 degrees through the hydraulic cylinders, and the two ends of the steel pipe can be synchronously bent at the same time through the symmetrically-arranged hydraulic cylinders.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bending processing equipment, in particular to a pipe bending device which is convenient to operate. Background Art

[0002] A pipe bender is a machine used for bending pipes and can also be used as a jack. It is roughly divided into CNC pipe bender, hydraulic pipe bender, etc. It is used in pipeline laying and repair in power construction, road and railway construction, bridges, ships, etc.

[0003] However, the existing pipe bending machines do not clamp the steel pipes tightly enough during use, and originally require more than two people to operate. Oxygen and acetylene heating are required to bend the pipes, and the shapes are not uniform, which is not convenient for batch processing of pipe bending. Utility Model Content

[0004] The purpose of the utility model is to provide a convenient pipe bending device to solve the problems of the existing pipe bending machine mentioned in the above background technology, that the steel pipe is not clamped tightly enough when in use, more than two people are required to operate it, oxygen and acetylene heating are required to bend the pipe, and the shape is not uniform, which is not convenient for batch processing of pipe bending.

[0005] To achieve the above-mentioned purpose, the utility model provides a convenient pipe bending device, including a workbench, a first push plate is installed on one side of the top of the workbench, and a second push plate is installed on the other side of the top of the workbench, a second positioning plate is arranged between the first push plate and the second push plate, and the first push plate and the second push plate are rotatably connected to the workbench at one end close to the second positioning plate through a third positioning pin, the first push plate, the second push plate and the second positioning plate are located on the same straight line, and the first positioning plate is arranged parallel to one side of the second positioning plate, and a steel pipe to be bent is placed between the second positioning plate and the first positioning plate, and the middle parts of the first push plate and the second push plate are externally connected to a driving component, and the first push plate and the second push plate are driven by the driving component to rotate around one end to bend the steel pipe.

[0006] Preferably, the first positioning plate is fixed on the workbench by two first positioning pins.

[0007] Preferably, the second positioning plate is fixed on the workbench by two second positioning pins.

[0008] Preferably, the driving assembly includes a hydraulic cylinder, a first pin is installed at the outer end of the output shaft of the hydraulic cylinder, the output shaft of one hydraulic cylinder is rotatably connected to the outer wall of the second push plate via the first pin, the output shaft of the other hydraulic cylinder is rotatably connected to the outer wall of the first push plate via the first pin, a second pin is installed at the bottom end of the hydraulic cylinder, the bottom end of the hydraulic cylinder is rotatably connected to a hydraulic cylinder mounting seat via the second pin, and the hydraulic cylinder mounting seat is fixed on the ground.

[0009] Preferably, the output shaft of the hydraulic cylinder drives the first push plate and the second push plate to move within a range of 90°.

[0010] Preferably, the length of the first positioning plate is smaller than that of the second positioning plate, and the gaps between the two ends of the first positioning plate and the second push plate are matched with the diameter of the steel pipe.

[0011] Preferably, the distance between the second positioning plate and the first positioning plate is adjusted according to the size of the steel pipe.

[0012] Preferably, both ends of the first positioning plate are of rounded corner structure on one side close to the steel pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In this easy-to-operate pipe bending device, the steel pipe can be clamped by the first positioning plate and the second positioning plate arranged therein, and the steel pipe is bent by hydraulic clamping at both ends. Only one person is needed to operate it, which reduces the labor intensity of workers and eliminates the oxygen and acetylene heating processes. The production efficiency is more than twice the original. The hydraulic cylinder can achieve a 90° bending of the steel pipe, and the symmetrically arranged hydraulic cylinders can simultaneously perform synchronous bending of the two ends of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure before the pipe is bent in the utility model;

[0016] Figure 2 This is a schematic diagram of the structure after the pipe is bent in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the hydraulic cylinder in the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Workbench; 2. First push plate; 3. First positioning plate; 4. Second push plate; 5. Second positioning plate; 6. First positioning pin; 7. Hydraulic cylinder; 71. First pin shaft; 72. Second pin shaft; 8. Second positioning pin; 9. Third positioning pin; 10. Hydraulic cylinder mounting seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a pipe bending device which is easy to operate. Figure 1-Figure 3 As shown, it includes a workbench 1, a first push plate 2 is installed on one side of the top of the workbench 1, a second push plate 4 is installed on the other side of the top of the workbench 1, a second positioning plate 5 is arranged between the first push plate 2 and the second push plate 4, the first push plate 2 and the second push plate 4 are rotatably connected to the workbench 1 at one end close to the second positioning plate 5 through a third positioning pin 9, the first push plate 2, the second push plate 4 and the second positioning plate 5 are located on the same straight line, a first positioning plate 3 is arranged parallel to one side of the second positioning plate 5, a steel pipe to be bent is placed between the second positioning plate 5 and the first positioning plate 3, the middle parts of the first push plate 2 and the second push plate 4 are externally connected to a driving component, and the first push plate 2 and the second push plate 4 are driven by the driving component to rotate around one end to bend the steel pipe.

[0022] In this embodiment, the first positioning plate 3 is fixed to the workbench 1 by two first positioning pins 6 to ensure the fixation of the first positioning plate 3 .

[0023] Specifically, the second positioning plate 5 is fixed on the workbench 1 via two second positioning pins 8 to ensure that the second positioning plate 5 is fixed.

[0024] Furthermore, the driving assembly includes a hydraulic cylinder 7, a first pin shaft 71 is installed at the outer end of the output shaft of the hydraulic cylinder 7, the output shaft of one hydraulic cylinder 7 is rotatably connected to the outer wall of the second push plate 4 through the first pin shaft 71, the output shaft of the other hydraulic cylinder 7 is rotatably connected to the outer wall of the first push plate 2 through the first pin shaft 71, a second pin shaft 72 is installed at the bottom end of the hydraulic cylinder 7, the bottom end of the hydraulic cylinder 7 is rotatably connected to the hydraulic cylinder mounting base 10 through the second pin shaft 72, the hydraulic cylinder mounting base 10 is fixed on the ground, and the output shaft is driven to extend and retract by the hydraulic cylinder 7 to realize the flipping of the first push plate 2 and the second push plate 4.

[0025] Furthermore, the output shaft of the hydraulic cylinder 7 drives the first push plate 2 and the second push plate 4 to move within a range of 90°, so that the horizontal steel pipe can be bent by 90°.

[0026] Furthermore, the length of the first positioning plate 3 is smaller than that of the second positioning plate 5, and the gaps between the two ends of the first positioning plate 3 and the second push plate 4 are adapted to the diameter of the steel pipe, so that the steel pipe can be bent without causing squeezing of the bending portion of the steel pipe.

[0027] Furthermore, the distance between the second positioning plate 5 and the first positioning plate 3 is adjusted according to the size of the steel pipe, so as to be used for bending steel pipes of different sizes.

[0028] Furthermore, the two ends of the first positioning plate 3 are rounded on one side close to the steel pipe to avoid wear on the bending part of the steel pipe when the steel pipe is bent.

[0029] When the convenient-to-operate pipe bending device of the utility model is used, the device is first assembled, and then the steel pipe to be bent is placed between the second positioning plate 5 and the first positioning plate 3, and the first push plate 2 and the second push plate 4 are driven by the driving assembly to rotate around one end to bend the steel pipe, and the output shaft is driven to extend and retract by the hydraulic cylinder 7 to realize the flipping of the first push plate 2 and the second push plate 4, and the second positioning plate 5 and the first positioning plate 3 are flipped from the original position to the 90° position, thereby realizing the bending of the steel pipe. During the bending process, the second positioning plate 5 and the first positioning plate 3 tightly clamp the middle part of the steel pipe, and the hydraulic cylinders 7 symmetrical at both ends are used to realize the synchronous bending of the two ends of the steel pipe, ensuring that the bending angles are the same, which is convenient for mass production.

[0030] Finally, it should be noted that the electronic components in the hydraulic cylinder 7 in this embodiment are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A convenient pipe bending device, comprising a workbench (1), characterized in that: A first push plate (2) is installed on one side of the top of the workbench (1), and a second push plate (4) is installed on the other side of the top of the workbench (1). A second positioning plate (5) is arranged between the first push plate (2) and the second push plate (4). One end of the first push plate (2) and the second push plate (4) close to the second positioning plate (5) are rotatably connected to the workbench (1) through a third positioning pin (9). The first push plate (2), the second push plate (4) and the second positioning plate (5) are located on the same straight line. A first positioning plate (3) is arranged parallel to one side of the second positioning plate (5). A steel pipe to be bent is placed between the second positioning plate (5) and the first positioning plate (3). The middle parts of the first push plate (2) and the second push plate (4) are both externally connected to a driving component, and the first push plate (2) and the second push plate (4) are driven by the driving component to rotate around one end to bend the steel pipe.

2. The convenient pipe bending device according to claim 1, characterized in that: The first positioning plate (3) is fixed on the workbench (1) via two first positioning pins (6).

3. The convenient pipe bending device according to claim 1, characterized in that: The second positioning plate (5) is fixed on the workbench (1) via two second positioning pins (8).

4. The convenient pipe bending device according to claim 1, characterized in that: The driving assembly comprises a hydraulic cylinder (7), the outer end of the output shaft of the hydraulic cylinder (7) is equipped with a first pin shaft (71), the output shaft of one hydraulic cylinder (7) is rotatably connected to the outer wall of the second push plate (4) through the first pin shaft (71), and the output shaft of the other hydraulic cylinder (7) is rotatably connected to the outer wall of the first push plate (2) through the first pin shaft (71), the bottom end of the hydraulic cylinder (7) is equipped with a second pin shaft (72), the bottom end of the hydraulic cylinder (7) is rotatably connected to a hydraulic cylinder mounting seat (10) through the second pin shaft (72), and the hydraulic cylinder mounting seat (10) is fixed on the ground.

5. The convenient pipe bending device according to claim 4, characterized in that: The output shaft of the hydraulic cylinder (7) drives the first push plate (2) and the second push plate (4) to move within a range of 90°.

6. The convenient pipe bending device according to claim 1, characterized in that: The length of the first positioning plate (3) is smaller than the length of the second positioning plate (5), and the gaps between the two ends of the first positioning plate (3) and the second push plate (4) are adapted to the diameter of the steel pipe.

7. The convenient pipe bending device according to claim 1, characterized in that: The distance between the second positioning plate (5) and the first positioning plate (3) is adjusted according to the size of the steel pipe.

8. The convenient pipe bending device according to claim 1, characterized in that: The two ends of the first positioning plate (3) close to the steel pipe have rounded corners.

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