Pipe bending device

Abstract

The utility model provides a kind of pipe bending device, it is related to bending field, the scheme used is: including base, vertical limit hole one is set in the base, the cross section of limit hole one is rectangular structure, further include: bending support, bending support is arch type structure, bending support is set on base;Anti -drop piece, anti -drop piece is wedge structure, the anti -drop piece can be inserted limit hole one extrusion pipe;Force plate, force plate is set on base by pivot, pivot and the center of bending support are collinear, force plate is provided with avoidance slot, the length direction of avoidance slot is consistent with the length direction of force plate, the bending section of pipe can be from avoidance slot stretch out, the top wall of avoidance slot can be with pipe bending section outer surface produce sliding friction;Driving part, driving part is rotatably connected with the free end of force plate, driving part is rotatably set on base, driving part can drive force plate rotate.The utility model is suitable for square tube bending use, and high safety.

Description

Technical Field

[0001] This utility model relates to the field of bending, and more particularly to a pipe bending device. Background Technology

[0002] Pipe bending machines are precision equipment specifically designed for forming various tubular materials. Through mechanical or hydraulic power controlled by a CNC system, they drive dies to precisely bend pipes and other materials. They can bend pipes into various angles and curvatures, such as U-shapes, V-shapes, and arcs, according to process requirements. They are suitable for processing pipes made of different materials, including stainless steel, carbon steel, and aluminum alloys, and are widely used in various fields.

[0003] In the prior art, a pipe bending machine is provided, including a horizontal upper plate and a lower plate. Limiting posts are provided at both ends between the upper plate and the lower plate. The limiting posts are connected by bolts and can rotate and lock. Two arc surfaces with different diameters are provided on the outer circumference of the limiting posts. The arc surfaces are used to reliably limit the pipe ends by contacting them. A support is also provided between the upper and lower plates. A push rod is axially movable on the support. An arc-shaped push plate is provided at the end of the push rod. The push plate can abut against the outer circle of the pipe. A manual hydraulic cylinder is connected to the rear of the push rod. The hydraulic cylinder applies a horizontal thrust to drive the push plate to bend the pipe to a set shape.

[0004] When bending square tubes using the above technical solutions, especially when bending the ends of the square tubes, the bending section is relatively short, and the arc surface on the limiting post is in line contact with the square tube. As bending occurs, the end of the square tube and the arc surface slip relative to each other, which can easily cause slippage, resulting in unsuccessful bending, damage to the bending machine, and certain safety risks. Therefore, the bending machine in the existing technology is not suitable for bending square tubes. Utility Model Content

[0005] In order to solve the technical problem that the bending machine in the prior art is not suitable for bending square tubes, the present invention provides a tube bending device that is suitable for bending square tubes.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a pipe bending device, including a base, on which a limiting hole is vertically provided, the limiting hole having a rectangular cross-section; a bending bracket, which has an arched structure and is disposed on the base; an anti-detachment component, which has a wedge-shaped structure and can be inserted into the limiting hole to compress the pipe; a force-applying plate, which is disposed on the base via a rotating shaft, the rotating shaft being collinear with the center of the bending bracket, and the force-applying plate having a clearance groove, the length direction of the clearance groove being consistent with the length direction of the force-applying plate, the bent section of the pipe being able to extend from the clearance groove, and the top of the groove wall being able to abut against the outer surface of the pipe; and a driving component, which is rotatably connected to the free end of the force-applying plate, the driving component being rotatably disposed on the base, and the driving component being able to drive the force-applying plate to rotate.

[0007] This utility model, through the cooperation of a bending bracket, an anti-slip component, a force-applying plate, and a driving component, enables the bending of a square tube in a vertical plane, facilitating operation. The limiting hole can stably position the square tube, and the wedge-shaped anti-slip component can tightly fill the gap between the tube and the limiting hole, effectively preventing the tube from shifting or slipping during bending, ensuring the consistency of the bending reference, and improving bending safety.

[0008] Furthermore, it also includes a second limiting hole, which is vertically arranged. The first limiting hole and the second limiting hole are symmetrically arranged on both sides of the bending bracket. The cross-sections of the second limiting hole and the first limiting hole are both rectangular structures with different diagonal lengths. Mounting seats are provided at both ends of the base. The driving component is detachable from and rotatably connected to the mounting seats.

[0009] By setting a second limiting hole, this utility model increases the applicable size range of the device, and the driving component can be adjusted to adjust the installation position, making it more flexible to use.

[0010] Furthermore, it also includes a second limiting hole, which is vertically arranged. The first limiting hole and the second limiting hole are symmetrically arranged on both sides of the bending bracket. The cross-section of the second limiting hole is circular, while the cross-section of the first limiting hole is rectangular. The diameter of the second limiting hole is different from the diameter of the inscribed circle of the first limiting hole. Mounting seats are provided at both ends of the base. The driving component is detachable from and rotatably connected to the mounting seats.

[0011] This invention provides two different shaped limiting holes, and with the help of the anti-detachment component, the device is suitable for bending round tubes and square tubes respectively, thus further expanding its application range.

[0012] Furthermore, the driving component is a hydraulic cylinder.

[0013] Furthermore, the bending bracket is provided with two supporting diagonal rods, which are arranged in an X-shape.

[0014] This invention enhances the strength of the bending bracket by setting up supporting diagonal braces, thus preventing deformation.

[0015] Furthermore, two limiting plates are provided opposite to each other on the bending bracket.

[0016] This invention uses a limiting plate to limit the pipe material and prevent it from shifting.

[0017] Furthermore, the anti-detachment component is connected to the base via a chain.

[0018] Furthermore, the wide end of the anti-detachment component is provided with a limiting rod, the length of which is greater than the width of the base.

[0019] This invention features a limiting rod to facilitate the removal of the anti-detachment component, thus enhancing operational convenience.

[0020] As can be seen from the above technical solutions, this utility model has the following advantages:

[0021] This utility model provides a pipe bending device. Through the cooperation of a bending bracket, an anti-slip component, a force-applying plate, and a driving component, it can bend square pipes in a vertical plane, facilitating operation. A first limiting hole provides stable positioning of the square pipe, and the wedge-shaped anti-slip component tightly fills the gap between the pipe and the limiting hole, effectively preventing pipe slippage during bending, ensuring consistency of the bending reference, and improving bending safety. The addition of a second limiting hole increases the applicable size range of the device, and the driving component can be adjusted to change the installation position, making it more flexible. By providing two different shaped limiting holes, and with the anti-slip component in place, the device is suitable for bending both round and square pipes, further expanding its applicability. The addition of a support diagonal brace enhances the strength of the bending bracket and prevents deformation. The addition of a limiting rod facilitates the removal of the anti-slip component, enhancing operational convenience. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0024] Figure 2This is a schematic diagram of the assembly structure of the base and the bending support plate in a specific embodiment of this utility model.

[0025] Figure 3 This is a usage diagram of a specific embodiment of the present invention.

[0026] Figure 4 This is a structural schematic diagram of a second specific embodiment of the present utility model.

[0027] Figure 5 This is a schematic diagram of the assembly structure of the base and the bending support plate in the second specific embodiment of this utility model.

[0028] In the diagram, 1. Base; 2. Mounting seat; 3. Drive component; 4. Clearance groove; 5. Pin 2; 6. Bending bracket; 7. Limiting rod; 8. Chain; 9. Anti-detachment component; 10. Limiting plate; 11. Force plate; 12. Supporting diagonal rod; 13. Limiting hole 2; 14. Limiting hole 1; 15. Rotating shaft; 16. Pin 1; 17. Support; 18. Square tube; 19. Abutment plate; 20. Connecting plate. Detailed Implementation

[0029] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent. Specific Implementation Method 1

[0031] like Figures 1 to 3As shown in the figure, this specific embodiment provides a pipe bending device, including a base 1, a bending bracket 6, a force-applying plate 11, an anti-detachment component 9, and a driving component 3. A limiting hole 14 is vertically provided on the base 1, and the limiting hole 14 has a rectangular cross-section. The bending bracket 6 has an arched structure and is mounted on the base. The anti-detachment component 9 has a wedge-shaped structure and can be inserted into the limiting hole 14 to tighten the pipe. Furthermore, it can prevent detachment of pipes of different sizes. The degree of insertion of component 9 is also different; the force-applying plate 11 is mounted on the base 1 via a rotating shaft 15, the rotating shaft 15 being collinear with the center of the bending bracket 6, the force-applying plate 11 being provided with a relief groove 4, the length direction of the relief groove 4 being consistent with the length direction of the force-applying plate 11, the bent section of the pipe being able to extend out from the relief groove 4, the relief groove 4 being opposite to the bending bracket 6, the bending bracket 6 also being able to extend out from the relief groove 4, the top of the groove wall of the relief groove 4 being able to contact the outer edge of the pipe. The surfaces abut and generate sliding friction. When the force-applying plate 11 is in its initial state, the limiting hole 14 is located in the relief groove 4, and the square tube 18 can pass through the relief groove 4 into the limiting hole 14. The driving member 3 is rotatably connected to the free end of the force-applying plate 11. The driving member 3 is rotatably mounted on the base 1, and the driving member 3 can drive the force-applying plate 11 to rotate. In this specific embodiment, the force-applying plate 11 has a U-shaped structure, including two connecting plates 20, and the connecting plates 20 are connected to... The base 1 is connected by a pivot 15, and the two connecting plates 20 are connected by an abutment plate 19. An clearance groove 4 is formed between the abutment plate 19 and the two connecting plates 20. The driving component 3 is a hydraulic cylinder. The piston rod of the hydraulic cylinder is connected to the force plate 11 by a pin. The hydraulic cylinder is connected to the oil supply device through an oil circuit. The cylinder body of the hydraulic cylinder is rotatably connected to the mounting seat 2 on the base 1 by a pin 16. The piston rod of the hydraulic cylinder is rotatably connected to the support 17 on the abutment plate 19 by a pin 2 5.

[0032] This specific embodiment, through the cooperation of the bending bracket 6, the anti-detachment component 9, the force-applying plate 11, and the driving component 3, enables the bending of the square tube 18 in the vertical plane, facilitating operation. The limiting hole 14 provides stable positioning for the square tube 18, and the wedge-shaped anti-detachment component 9 tightly fills the gap between the tube and the limiting hole, effectively preventing the tube from shifting or slipping during bending and improving bending safety. Furthermore, the clearance groove 4 slides and rubs against the tube, preventing force from being applied to the end of the square tube 18, making the bending deformation of the square tube 18 more closely aligned with the bending bracket 6, thus improving the accuracy of bending deformation. The presence of the force-applying plate 11 acts as a limit, effectively preventing large dimensional deviations between the square tube 18 and the bending bracket 6, further improving bending accuracy.

[0033] To further expand the applicable size range of square tubes 18 for this device, such as Figures 1 to 3As shown, in this specific embodiment, a second limiting hole 13 is also included. The second limiting hole 13 is vertically arranged, and its cross-section is also rectangular. The first limiting hole 14 and the second limiting hole 13 have different dimensions. The first limiting hole 14 and the second limiting hole 13 are symmetrically arranged on both sides of the bending bracket 6 and close to the bending bracket 6. Correspondingly, mounting seats 2 are welded to both ends of the base 1. The driving component 3 is detachably and rotatably connected to the mounting seats 2. Specifically, The mounting base 2 is provided with a pin 16, which passes through the mounting base 2 and is connected to a cotter pin. When the force plate 11 swings to one end of the limiting hole 13 and is in the initial state, the limiting hole 13 is located in the relief groove 4, and the square tube 18 can pass through the relief groove 4 into the limiting hole 13. With this setting, square tubes 18 with different diagonal lengths can use different limiting holes, and the driving component 3 can be installed at different ends of the base 1. Combined with the wedge-shaped anti-detachment component 9, the application range of this device can be greatly increased.

[0034] To ensure the strength of the bending bracket 6, two supporting diagonal rods 12 are provided inside the bending bracket 6, and the two supporting diagonal rods 12 are arranged in an X-shape. Since there is still a gap between the clearance groove 4 and the bend, the pipe may still shift. To prevent the square tube 18 from shifting on the bending bracket 6, two limiting plates 10 are provided on the bending bracket.

[0035] like Figure 1 and Figure 3 As shown, in this specific embodiment, the anti-detachment component 9 is connected to the base 1 via a chain 8. Preferably, the wide end of the anti-detachment component 9 is provided with a limiting rod 7. The length of the limiting rod 7 is greater than the width of the base 1. By providing the limiting rod 7, it is convenient to remove the anti-detachment component 9 from the limiting hole 14 or the limiting hole 13, thereby enhancing the ease of operation.

[0036] like Figure 3 As shown, the usage process of this device is as follows:

[0037] In use, clamp the base 1 of this device onto the workbench using a vise, and select either the limiting hole 14 or the limiting hole 13 to pass through according to the size of the square tube 18 to achieve limiting; install the anti-detachment component 9 and tighten it; then install the drive component 3 at the corresponding end; place the force plate 11 on the side of the square tube 18 away from the bending bracket 6, open the control valve on the oil circuit, the piston rod of the drive component 3 extends to drive the force plate 11 to rotate, and the drive component 3 itself also rotates. When the force plate 11 rotates, the top of the clearance groove 4 drives the square tube 18 to bend along the bending bracket 6 until it is bent into place; control the hydraulic cylinder to reset, the force plate 11 resets, remove the anti-detachment component 9, and then remove the bent square tube 18. Specific Implementation Method Two

[0039] like Figure 4 and Figure 5 As shown, this specific embodiment provides a pipe bending device, the structure of which is basically the same as that of the first specific embodiment, the difference being that: it also includes a second limiting hole 13, the second limiting hole 13 is vertically arranged, the cross-section of the second limiting hole 13 is circular, the cross-section of the first limiting hole 14 is rectangular, the diameter of the second limiting hole 13 is different from the diameter of the inscribed circle of the first limiting hole 14, and in this specific embodiment, the diameter of the second limiting hole 13 is smaller.

[0040] This specific embodiment provides two different shaped limiting holes, and with the help of the anti-detachment component 9, the device is suitable for bending round tubes and square tubes 18 respectively, further increasing its applicability and making it more flexible to use.

[0041] When the diameter of the round tube is large, exceeding the diameter of the second limiting hole 13, the first limiting hole 14 can also be used in conjunction with the anti-detachment component 9 for limiting.

[0042] As can be seen from the above specific embodiments, this utility model has the following beneficial effects:

[0043] 1. Through the cooperation of bending bracket 6, anti-detachment component 9, force plate 11 and driving component 3, the square tube 18 can be bent in the vertical plane, which is convenient for operation. The limiting hole 14 can stably position the square tube 18. With the help of the wedge-shaped anti-detachment component 9, the gap between the tube and the limiting hole can be tightly filled, effectively preventing the tube from shifting and slipping during bending, ensuring the consistency of the bending reference, and improving the bending safety.

[0044] 2. By setting the limiting hole 13, the applicable size range of this device is increased, and the driving component 3 can be adjusted to adjust the installation position, making it more flexible to use;

[0045] 3. By providing two different shapes of limiting holes, and with the action of the anti-detachment component 9, this device is suitable for bending round tubes and square tubes 18 respectively, further expanding its application range;

[0046] 4. The strength of the bending bracket 6 is enhanced by setting up the supporting diagonal brace 12 to prevent deformation;

[0047] 5. The limit rod 7 makes it easier to remove the anti-detachment part 9, thus enhancing the convenience of operation.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe bending device, comprising a base (1), characterized in that, The base (1) is vertically provided with a limit hole (14), and also includes: A bending bracket (6) is an arched structure and is vertically mounted on the base (1). Anti-detachment component (9), the anti-detachment component (9) has a wedge-shaped structure, the anti-detachment component (9) can be inserted into the limiting hole (14) to squeeze the tube; A force-applying plate (11) is mounted on the base (1) via a rotating shaft (15). The rotating shaft (15) is collinear with the center of the bending bracket (6). A clearance groove (4) is provided on the force-applying plate (11). The length direction of the clearance groove (4) is consistent with the length direction of the force-applying plate (11). The bent section of the pipe can extend out from the clearance groove (4). The top of the groove wall of the clearance groove (4) can abut against the outer surface of the pipe. The driving component (3) is rotatably connected to the free end of the force-applying plate (11). The driving component (3) is rotatably mounted on the base (1). The driving component (3) can drive the force-applying plate (11) to rotate.

2. The pipe bending device as described in claim 1, characterized in that, It also includes a second limiting hole (13), which is vertically arranged. The first limiting hole (14) and the second limiting hole (13) are symmetrically arranged on both sides of the bending bracket (6). The cross-sections of the second limiting hole (13) and the first limiting hole (14) are both rectangular structures with different diagonal lengths. Mounting seats (2) are provided at both ends of the base (1). The driving component (3) is detached from and rotatably connected to the mounting seat (2).

3. The pipe bending device as described in claim 1, characterized in that, It also includes a second limiting hole (13), which is vertically arranged. The first limiting hole (14) and the second limiting hole (13) are symmetrically arranged on both sides of the bending bracket (6). The cross-section of the second limiting hole (13) is circular, and the cross-section of the first limiting hole (14) is rectangular. The diameter of the second limiting hole (13) is different from the diameter of the inscribed circle of the first limiting hole (14). Mounting seats (2) are provided at both ends of the base (1). The driving component (3) is detached from and rotatably connected to the mounting seat (2).

4. The pipe bending device as described in claim 3, characterized in that, The driving component (3) is a hydraulic cylinder.

5. The pipe bending device according to any one of claims 1-4, characterized in that, The bending bracket (6) is provided with two supporting diagonal rods (12), which are arranged in an X-shape.

6. The pipe bending device as described in claim 5, characterized in that, Two limiting plates (10) are arranged opposite each other on the bending bracket (6).

7. The pipe bending device as described in claim 5, characterized in that, The anti-detachment component (9) is connected to the base (1) via a chain (8).

8. The pipe bending device as described in claim 7, characterized in that, The anti-detachment component (9) is provided with a limiting rod (7) at its wide end, and the length of the limiting rod (7) is greater than the width of the base (1).

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