Pipe bending machine capable of conveniently adjusting pipe diameter

Abstract

The pipe bending machine comprises a workbench and a first clamping piece, a controller is attached to the right side of the workbench, a tool rest is arranged above the workbench, a hydraulic cylinder is arranged in the tool rest, a cutter is connected to the lower portion of the hydraulic cylinder, the hydraulic cylinder penetrates through the center of a fixing plate, and the cutter is connected to the lower portion of the hydraulic cylinder. A hydraulic cylinder is arranged on the right side of the cutter, bolts are connected to the two sides of the hydraulic cylinder, a cutting groove is formed below the cutter, two first clamping pieces are arranged on the right side of the cutter, servo motors are arranged below the first clamping pieces, sliding rails are arranged on the two sides of each first clamping piece, and a first pin shaft penetrates through the center of each first clamping piece; according to the metal pipe bending device, a metal pipe needing to be machined is placed between the first clamping pieces to be conveyed, meanwhile, the second clamping pieces can adjust the position of the second clamping pieces through the sliding rails according to requirements to bend the metal pipe, and when the metal pipe needs to be bent by 180 degrees, the metal pipe enters the position between the movable clamping piece and the fixed clamping piece.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bending equipment, and particularly relates to a pipe bender convenient for adjusting the pipe diameter. Background Technique

[0002] A pipe bender is a machine that can bend metal pipes according to requirements, and is mostly used in pipeline laying and repair in aspects such as power construction, railway construction, bridges, ships, etc. In modern life, it is also often used for bending steel pipes in power construction, boilers, bridges, installations, etc., and has the advantages of multiple functions, reasonable structure, simple operation, etc.;

[0003] After retrieval, the existing patent (publication number: CN210497805U) discloses a pipe bender with adjustable pipe diameter, including a main box body. A power mechanism is installed inside the main box body, an adjustment mechanism is installed on the surface of the main box body, a storage cabinet is installed at the top of the main box body, and a wheel set mechanism is installed at the top of the main box body on one side of the storage cabinet: The wheel set mechanism includes a movable wheel and a fixed wheel:

[0004] The existing pipe bender cannot be adjusted according to the diameter of the processed metal pipe, resulting in great limitations. Moreover, the existing pipe bender can only bend the metal pipe at 90°, cannot bend the metal pipe at 180°, and cannot cut the metal pipe after processing, which greatly increases the difficulty of subsequent manual processing;

[0005] Therefore, a pipe bender convenient for adjusting the pipe diameter is proposed for the above problems. Content of the Utility Model

[0006] In order to overcome the above defects of the prior art, the utility model provides a pipe bender convenient for adjusting the pipe diameter to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A pipe bender convenient for adjusting the pipe diameter, including a workbench and a first clamping member. A controller is attached to the right side of the workbench. A tool rest is arranged above the workbench. A hydraulic cylinder is arranged inside the tool rest. A cutting knife is connected below the hydraulic cylinder. The hydraulic cylinder penetrates through the center of a fixing plate. Bolts are connected to both sides of the hydraulic cylinder. A cutting groove is opened below the cutting knife. Two groups of first clamping members are arranged on the right side of the cutting knife. A servo motor is arranged below the first clamping member. Slide rails are opened on both sides of the first clamping member. A first pin shaft penetrates through the center of the first clamping member. Small hydraulic cylinders are arranged on both sides of the first clamping member;

[0008] On the right side of the first clamping member, there are two groups of second clamping members. A second pin shaft penetrates through the center of the second clamping member. Small hydraulic cylinders are arranged on both sides of the second clamping member. A bending device is arranged on the right side of the second clamping member, and a driving motor is arranged below the bending device.

[0009] Preferably, the hydraulic cylinder includes a cylinder body and a piston rod.

[0010] Preferably, a piston rod is connected above the cutting knife, and a cylinder body is arranged above the piston rod.

[0011] Preferably, the bending device includes a fixed member, a movable clamping member, a third pin shaft, and a fixed clamping member.

[0012] Preferably, a connecting shaft is connected above the driving motor. The connecting shaft penetrates through the center of the fixed clamping member. A fixed member is attached to the upper part of the fixed clamping member. The third pin shaft penetrates through the right end of the fixed member, and a movable clamping member is connected below the third pin shaft.

[0013] Preferably, the hydraulic cylinder, the small hydraulic cylinder, the servo motor, and the driving motor are all electrically connected to the controller.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. Compared with the prior art, for this pipe bender that is convenient for adjusting the pipe diameter, the metal pipe to be processed is placed between the first clamping members for transportation. At the same time, the second clamping member will adjust its own position through the slide rail according to requirements to bend the metal pipe. When it is necessary to bend the metal pipe by 180°, the metal pipe is inserted between the movable clamping member and the fixed clamping member. At the same time, while the movable clamping member rotates, the metal pipe is bent by 180°.

[0016] 2. Compared with the existing technology, for this pipe bender that is convenient for adjusting the pipe diameter, the processed metal pipe is cut. The hydraulic cylinder presses the cutting knife downward, and the cutting knife cuts the metal pipe. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the internal structure of the top view of the pipe bender that is convenient for adjusting the pipe diameter of the present utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the side view of the pipe bender that is convenient for adjusting the pipe diameter of the present utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the bending device of the pipe bender that is convenient for adjusting the pipe diameter of the present utility model.

[0020] The reference numerals are: 1, workbench; 2, controller; 3, tool rest; 4, hydraulic cylinder; 41, cylinder block; 42, piston rod; 5, fixing plate; 6, small hydraulic cylinder; 7, slide rail; 8, first clamping member; 9, first pin shaft; 10, bending device; 101, fixing member; 102, movable clamping member; 103, third pin shaft; 104, fixed clamping member; 14, second clamping member; 15, second pin shaft; 16, servo motor; 17, connecting shaft; 18, driving motor; 19, bolt; 20, cutter; 21, cutting groove. Detailed implementation manner

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1

[0023] As shown in the attached Figures 1 to 2 A pipe bender for facilitating pipe diameter adjustment, including a workbench 1 and a first clamping member 8. A controller 2 is attached to the right side of the workbench 1. A tool rest 3 is arranged above the workbench 1. A hydraulic cylinder 4 is arranged inside the tool rest 3. A cutter 20 is connected below the hydraulic cylinder 4. Bolts 19 are connected to both sides of the hydraulic cylinder 4. A cutting groove 21 is opened below the cutter 20. Two groups of first clamping members 8 are arranged on the right side of the cutter 20. A servo motor 16 is arranged below the first clamping member 8. Slide rails 7 are opened on both sides of the first clamping member 8. A first pin shaft 9 penetrates through the center of the first clamping member 8. Small hydraulic cylinders 6 are arranged on both sides of the first clamping member 8;

[0024] Two groups of second clamping members 14 are arranged on the right side of the first clamping member 8. A second pin shaft 15 penetrates through the center of the second clamping member 14. Small hydraulic cylinders 6 are arranged on both sides of the second clamping member 14. A bending device 10 is arranged on the right side of the second clamping member 14. A driving motor 18 is arranged below the bending device 10.

[0025] Among them: The workbench 1 bears the weight of the equipment. The tool rest 3 fixes the cutting tool 20. The bolt 19 fixes the hydraulic cylinder 6 inside the tool rest 3. The cutting tool 20 presses down through the hydraulic cylinder 6 to cut the metal pipe. At the same time, the cutting groove 21 protects the workbench from being damaged by the cutting tool 20. The first clamping member 8 conveys the metal pipe. It is pushed by the small hydraulic cylinder 6, moves in the slide rail 7 and fixes the metal pipe at the same time. The first pin shaft 9 is connected to the servo motor 16 to operate, and at the same time drives the first clamping member 8 to transport. After passing through the first clamping member 8, the second clamping member 14 will move through the small hydraulic cylinder 6 and the slide rail 7 to bend the metal pipe. At the same time, the bending device 10 operates through the driving motor 18 and can bend the metal pipe by 180°.

[0026] Embodiment 2

[0027] Based on Embodiment 1, the solution in Embodiment 1 will be further refined and introduced in combination with the following specific working methods, as Figures 1 to 3 shown, see the following description for details:

[0028] As a preferred implementation method, the hydraulic cylinder 4 includes a cylinder block 41 and a piston rod 42. The piston rod 42 is connected above the cutting tool 20, and the cylinder block 41 is arranged above the piston rod 42. Further, when the pressure is transmitted into the cylinder block 41, the liquid inside the cylinder block 41 will push the piston rod 42 to move forward. When the liquid is flushed out, the piston rod 42 will return to its original position to complete a working cycle.

[0029] As a preferred implementation method, the bending device 10 includes a fixing member 101, a movable clamping member 102, a third pin shaft 103 and a fixed clamping member 104. The connecting shaft 17 is connected above the driving motor 18, and the connecting shaft 17 penetrates through the center of the fixed clamping member 104. The fixing member 101 is attached above the fixed clamping member 104. The third pin shaft 103 penetrates through the right end of the fixing member 101, and the movable clamping member 102 is connected below the third pin shaft 103. Further, the fixing member 101 connects the fixed clamping member 104 and the movable clamping member 102, and the third pin shaft 103 connects and fixes the movable clamping member 102. When the metal pipe passes through between the fixed clamping member 104 and the movable clamping member 102, the driving motor 18 operates to drive the connecting shaft 17 and rotates the movable clamping member 102 while the metal pipe is bent accordingly.

[0030] As a preferred implementation method, the hydraulic cylinder 4, the small hydraulic cylinder 6, the servo motor 16 and the driving motor 18 are all electrically connected to the controller 2. Further, after the controller 2 inputs parameters for each item, the equipment is operated.

[0031] The working process of the present utility model is as follows: First, place the metal pipe into the workbench 1, and operate the servo motor 16 through the controller 2. The operation of the servo motor 16 drives the first clamping member 8 to rotate through the first pin shaft 9. At the same time, the small hydraulic cylinder 6 pushes the first clamping member 8 to move on the slide rail 7 to fix the metal pipe. The metal pipe is transported to the second clamping member 14, and the second clamping member 14 moves through the small hydraulic cylinder 6 and the slide rail 7, and bends the metal pipe at the same time. When the metal pipe enters between the fixed clamping member 104 and the movable clamping member 102, the drive motor 18 operates to drive the connecting shaft 17, the connecting shaft 17 drives the fixing member 101, and while the fixing member 101 rotates, it drives the movable clamping member 102, and the movable clamping member 102 bends the metal pipe into 180°. After the metal pipe processing is completed, the hydraulic cylinder 4 presses down to the cutting knife 20, and the piston rod 42 pushes the cutting knife 20 to cut the metal pipe, and the cutting groove 21 will protect the workbench 1 from damage. After cutting, the metal pipe is transported out through the first clamping member 8 and the second clamping member 14.

[0032] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pipe bender facilitating the adjustment of pipe diameter, comprising a workbench (1) and a first clamping member (8), characterized in that: On the right side of the workbench (1), a controller (2) is attached. Above the workbench (1), a tool holder (3) is provided. Inside the tool holder (3), a hydraulic cylinder (4) is arranged. Below the hydraulic cylinder (4), a cutting tool (20) is connected. The hydraulic cylinder (4) passes through the center of a fixing plate (5). On both sides of the hydraulic cylinder (4), bolts (19) are connected. Below the cutting tool (20), a cutting groove (21) is formed. On the right side of the cutting tool (20), two groups of first clamping members (8) are provided. Below the first clamping members (8), a servo motor (16) is arranged. On both sides of the first clamping members (8), slide rails (7) are formed. Through the center of the first clamping members (8), a first pin shaft (9) passes. On both sides of the first clamping members (8), small hydraulic cylinders (6) are arranged; On the right side of the first clamping members (8), two groups of second clamping members (14) are provided. Through the center of the second clamping members (14), a second pin shaft (15) passes. On both sides of the second clamping members (14), small hydraulic cylinders (6) are arranged. On the right side of the second clamping members (14), a bending device (10) is provided. Below the bending device (10), a driving motor (18) is arranged.

2. The pipe bender for facilitating the adjustment of pipe diameter according to claim 1, wherein: The hydraulic cylinder (4) includes a cylinder block (41) and a piston rod (42).

3. The pipe bender for facilitating the adjustment of pipe diameter according to claim 2, characterized in that: Above the cutting tool (20), a piston rod (42) is connected. Above the piston rod (42), a cylinder block (41) is arranged.

4. The pipe bender for facilitating the adjustment of pipe diameter according to claim 3, wherein: The bending device (10) includes a fixing member (101), a movable clamping member (102), a third pin shaft (103), and a fixed clamping member (104).

5. The pipe bender for facilitating the adjustment of pipe diameter according to claim 4, wherein: Above the driving motor (18), a connecting shaft (17) is connected. The connecting shaft (17) passes through the center of the fixed clamping member (104). Above the fixed clamping member (104), the fixing member (101) is attached. Through the right end of the fixing member (101), the third pin shaft (103) passes. Below the third pin shaft (103), the movable clamping member (102) is connected.

6. The pipe bender for facilitating the adjustment of pipe diameter according to claim 5, wherein: The hydraulic cylinder (4), the small hydraulic cylinders (6), the servo motor (16), and the driving motor (18) are all electrically connected to the controller (2).

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