Bending forming device for hollow pipe fitting

Abstract

The utility model discloses a bending forming device for a hollow pipe fitting, which comprises a bottom plate, a plurality of vertical plates are mounted on the bottom plate, a first clamping seat, a first bending forming component and a fourth bending forming component are mounted on the first vertical plate, a second clamping seat, a second bending forming component and a third bending forming component are mounted on the second vertical plate, and the third bending forming component is mounted on the second vertical plate. A fifth bending forming assembly is installed on the third datum plane of the third vertical plate, and the first clamping base fixes a hollow pipe to be machined and is locked by the second clamping base after the hollow pipe is bent to be parallel to the second datum plane of the second vertical plate through the first bending forming assembly. The second bending forming assembly and the third bending forming assembly are both installed on the second datum plane and bend the to-be-machined hollow pipe in sequence. The fourth bending forming assembly is located between the first vertical plate and the third vertical plate and bends the to-be-machined hollow pipe to be flush with the third datum plane. According to the device, the hollow pipe fitting can be quickly assembled, bent and formed through the multiple bending forming assemblies of the same structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the partial improvement design technical field of pipe bending equipment, especially relates to a bending forming device for hollow pipe. BACKGROUND

[0002] Copper pipe is a seamless pipe pressed and drawn, has good electric conductivity, thermal conductivity, corrosion resistance, easy to bend modeling, is the first choice of fluid conveying pipe of all walks of life, especially suitable for multi-angle bending of non-standard hollow pipe such as new energy guide pipe. Due to the requirement of use environment and equipment, manufacturers or individuals will bend the copper pipe to different degrees to meet the use demand. The new energy guide heat dissipation component obtained by bending the copper pipe is a non-standard part, and standard parts cannot be purchased to replace it on the market. Directly purchasing a bending machine has high cost, and the processing and debugging procedures are complicated, and a special mold needs to be developed for forming. The existing manual bending device needs to frequently replace the mold, and the pipe is easy to deviate during multi-angle bending, resulting in poor consistency of finished products.

[0003] In the prior art, the patent with publication number CN221754422U discloses a copper pipe bending machine, belonging to the technical field of copper pipe bending, comprising: a base; the base is provided with a connecting plate on the top, the connecting plate is fixedly connected with a main mold wheel on the top, the main mold wheel is fixedly connected with a limiting column on the top, the limiting column is rotatably connected with a connecting frame on the outer wall, one end of the connecting frame is screwedly connected with a third screw, the third screw is rotatably connected with a secondary mold wheel on the outer wall, the base is fixedly connected with an electric cylinder on the top, the electric cylinder is drivingly connected with an auxiliary block at the telescopic end, the base is fixedly connected with a stop ruler on the top close to the auxiliary block, the utility model can be matched with a plurality of main mold wheels and secondary mold wheels with different pipe grooves, and the main mold wheels and secondary mold wheels can be replaced for use, the auxiliary block is controlled to move in parallel by the electric cylinder, and the length scale of the stop ruler is utilized when moving to more accurately control the moving distance of the auxiliary block, so that the copper pipe of different pipe diameters can be conveniently processed.

[0004] The patent with the publication number CN202725711U discloses a hollow pipe material bending and hot forming device, which comprises a base, a sliding platform, a positioning mechanism, a pipe material fixing part, a bending mechanism, a guide slide, a driving device, a transmission device, a bending die set, the bending die set is fixed on the sliding platform and / or the bending mechanism, and the pipe material fixing part is fixedly connected with the sliding platform and / or the base.

[0005] The present application provides a bending forming device for a hollow pipe. Utility model content

[0006] The bending forming device for a hollow pipe can be quickly assembled and bent at different installation positions through multiple bending forming assemblies with the same structure.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bending forming device for a hollow pipe, comprising a bottom plate, a first vertical plate, a second vertical plate and a third vertical plate are respectively installed on the bottom plate, a first clamping seat, a first bending forming assembly and a fourth bending forming assembly are installed on the first vertical plate, a second clamping seat, a second bending forming assembly and a third bending forming assembly are installed on the second vertical plate, a fifth bending forming assembly is installed on the third vertical plate, the first clamping seat fixes the hollow pipe to be processed and is locked by the second clamping seat after being bent to be parallel to the second reference surface of the second vertical plate through the first bending forming assembly, the second bending forming assembly and the third bending forming assembly are both installed on the second reference surface and sequentially bend the hollow pipe to be processed, the fourth bending forming assembly is located between the first vertical plate and the third vertical plate and bends the hollow pipe to be processed to be flush with the third reference surface of the third vertical plate, and the fifth bending forming assembly is installed on the third reference surface; the first bending forming assembly, the second bending forming assembly, the third bending forming assembly, the fourth bending forming assembly and the fifth bending forming assembly are the same in structure and are all composed of a connecting block, a positioning wheel and a movable roller, wherein the positioning wheel and the movable roller are rotatably connected with the connecting block.

[0008] Further, the first clamping seat and the first bending forming assembly are installed on the first reference surface of the first vertical plate respectively, and the first reference surface is parallel to the horizontal surface of the bottom plate.

[0009] Further, the second clamping seat, the second bending forming assembly and the third bending forming assembly are installed on the second reference surface of the second vertical plate respectively, and the second reference surface is located at the set position of the second bending forming assembly for bending the hollow pipe to be processed.

[0010] Further, the included angle between the second reference surface and the first reference surface is an acute angle.

[0011] Further, the first positioning pin and the second positioning pin are installed on the second reference surface, the first positioning pin is located at the set position of the second bending forming assembly for bending the hollow pipe to be processed, and the second positioning pin is located at the set position of the third bending forming assembly for bending the hollow pipe to be processed.

[0012] Further, the fourth bending forming assembly is installed on the side of the first vertical plate, and the third vertical plate is provided with a corresponding avoiding space corresponding to the fourth bending forming assembly.

[0013] Further, the step positioning pin is installed on the first vertical plate and located at the set position of the fourth bending forming assembly for bending the hollow pipe to be processed.

[0014] Further, the avoiding surface corresponding to the third reference surface is further processed on the first vertical plate, and the avoiding surface is staggered with the bending track of the fifth bending forming assembly.

[0015] Further, the first bending forming assembly comprises a first positioning wheel, a first connecting block, a first movable roller, a second movable roller and a first hand lever, the first connecting block is rotatably connected with the first positioning wheel, the first movable roller and the second movable roller respectively, the first movable roller and the second movable roller are the same in structure, the first positioning wheel is rotatably installed on the first reference surface, and the first hand lever is inserted into the side of the first connecting block and drives the first connecting block to rotate around the shaft core of the first positioning wheel.

[0016] Further, the first clamping seat and the second clamping seat are the same in structure and are composed of a pressing block and a pad block, the pressing block and the pad block are both provided with an arc-shaped groove and a through hole, the arc-shaped groove is matched with the hollow pipe to be processed, and screw holes are processed on the first vertical plate or the second vertical plate and are connected with the through holes of the pressing block and the pad block through bolts.

[0017] Compared with the prior art, the device has the beneficial effects that: the device can quickly assemble and bend the hollow pipe at different installation positions through the plurality of bending forming assemblies which are the same in structure, and the clamping seat at the corresponding position is combined to clamp the hollow pipe to be processed and the different positioning pins are combined to determine the bending angle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 for the utility model of the three-dimensional Figure 1 ;

[0019] Figure 2 for the utility model of the three-dimensional Figure 2 ;

[0020] Figure 3 for the utility model of the three-dimensional Figure 3 ;

[0021] Figure 4 for the utility model of the first time bending forming schematic view;

[0022] Figure 5 for the utility model of the second time bending forming schematic view;

[0023] Figure 6 for the utility model of the third time bending forming schematic view;

[0024] Figure 7 for the utility model of the fourth time bending forming schematic view;

[0025] Figure 8 for the utility model of the fifth time bending forming schematic view.

[0026] In the drawing: 1. first bending forming assembly;11. first positioning wheel;12. first connecting block;13. first dynamic roller;14. second dynamic roller;15. first hand lever;2. second bending forming assembly;21. second positioning wheel;22. second connecting block;23. third dynamic roller;24. fourth dynamic roller;25. second hand lever;3. third bending forming assembly;31. third positioning wheel;32. third connecting block;33. fifth dynamic roller;34. sixth dynamic roller;4. fourth bending forming assembly;41. fourth positioning wheel;42. fourth connecting block;43. seventh dynamic roller;44. eighth dynamic roller;5. fifth bending forming assembly;51. fifth positioning wheel;52. fifth connecting block;53. ninth dynamic roller;54. tenth dynamic roller;6. bottom plate;7. first vertical plate;70. first reference surface;71. first clamping seat;72. step positioning pin;8. second vertical plate;80. second reference surface;81. second clamping seat;82. second positioning pin;83. first positioning pin;9. third vertical plate;90. third reference surface. DETAILED DESCRIPTION

[0027] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected", "provided" and the like should be understood broadly, for example, when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a middle element. When an element is considered "mounted on" another element, it can be directly mounted on another element or there can be a middle element. When an element is considered "connected" to another element, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements.

[0029] For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Embodiment one

[0032] Referring to Figures 1-8As shown in the utility model discloses a kind of bending forming device for hollow pipe, including bottom plate 6, the bottom plate 6 is respectively equipped with first vertical plate 7, second vertical plate 8 and third vertical plate 9, first vertical plate 7 is equipped with first clamping seat 71, first bending forming assembly 1 and fourth bending forming assembly 4, second vertical plate 8 is equipped with second clamping seat 81, second bending forming assembly 2 and third bending forming assembly 3, third vertical plate 9 is equipped with fifth bending forming assembly 5, first clamping seat 71 is fixed to be processed hollow pipe and is bent to the second datum plane 80 parallel to second vertical plate 8 by first bending forming assembly 1 after being locked by second clamping seat 81, second bending forming assembly 2 and third bending forming assembly 3 are all installed on second datum plane 80 and sequentially bend to be processed hollow pipe, fourth bending forming assembly 4 is located between first vertical plate 7 and third vertical plate 9 and bends to be processed hollow pipe to be flush with the third datum plane 90 of third vertical plate 9, and fifth bending forming assembly 5 is installed on third datum plane 90;The structure of first bending forming assembly 1, second bending forming assembly 2, third bending forming assembly 3, fourth bending forming assembly 4 and fifth bending forming assembly 5 is same and is all composed of connecting block, positioning wheel and dynamic roller, wherein positioning wheel and dynamic roller are rotatably connected with connecting block respectively.

[0033] The utility model discloses device is applicable to the bending forming of hollow pipe made of copper material, and the hollow pipe to be processed is standard straight copper pipe, and the size is as follows: outer diameter 12.7±0.1mm, inner diameter 10.2±0.1mm, length 800±2mm.The bending forming operation of the device is divided into five steps, and the bending forming assembly of five installation positions is different, first, the installation and fixation of bottom plate 6 and three vertical plates, then the hollow pipe to be processed is fixed by first clamping seat 71, then the first bending forming assembly 1 is rotated to complete the first pipe bending operation, until the end of the pipe bending is parallel to second datum plane 80, and then the pipe is clamped and fixed by second clamping seat 81, then the second bending forming assembly 2 and the third bending forming assembly 3 are pulled in turn to complete the second and third pipe bending operations, finally, the fourth bending forming assembly 4 and the fifth bending forming assembly 5 are pulled in turn to complete the fourth and fifth pipe bending operations, and the final required finished pipe bending part is obtained.

[0034] Example two

[0035] Refer to Figures 1-8 As shown in the utility model discloses a kind of bending forming device for hollow pipe, on the basis of the technical scheme of example one, for the installation position design of each bending forming assembly, first clamping seat 71 and first bending forming assembly 1 are respectively installed on the first datum plane 70 of first vertical plate 7, and the horizontal plane of first datum plane 70 is parallel to bottom plate 6, so that first clamping seat 71 can be fixed to clamp the hollow pipe to be processed, and the clamping position is accurate to facilitate the first pipe bending operation.

[0036] Further, the second clamping seat 81, the second bending forming assembly 2 and the third bending forming assembly 3 are respectively installed on the second reference surface 80 of the second vertical plate 8, so that the second clamping seat 81 can fix and clamp the hollow pipe to be processed, and facilitate the second and third bending operations. The second reference surface 80 is located at the set position of the first bending forming assembly 1 bending the hollow pipe to be processed, and meets the requirement of the set bending angle value of the first bending operation. In addition, since the second and third bending operations are not performed on the vertical plane, the included angle between the second reference surface 80 and the first reference surface 70 is an acute angle, such as an 80-degree included angle. In addition, the first positioning pin 83 and the second positioning pin 82 are also vertically installed on the second reference surface 80. The first positioning pin 83 is located at the set position of the second bending forming assembly 2 bending the hollow pipe to be processed, that is, the limiting position of the second bending operation. The second positioning pin 82 is located at the set position of the third bending forming assembly 3 bending the hollow pipe to be processed, that is, the limiting position of the third bending operation.

[0037] Further, the fourth bending forming assembly 4 is installed on the side of the first vertical plate 7, and the third vertical plate 9 is provided with a corresponding avoiding space corresponding to the fourth bending forming assembly 4. The design of the avoiding space makes the fourth bending assembly not be blocked by the third vertical plate 9 when it is pulled. In addition, the first vertical plate 7 is provided with a stepped positioning pin 72, which is located at the set position of the fourth bending forming assembly 4 bending the hollow pipe to be processed, that is, the limiting position of the fourth bending operation. In addition, the first vertical plate 7 is also processed with an avoiding surface corresponding to the third reference surface 90. The avoiding surface is staggered with the bending trajectory of the fifth bending forming assembly 5, that is, the avoiding surface is lower than the surface where the fifth bending forming assembly 5 is located when it is pulled. The first vertical plate 7 will not hinder the installation position and bending operation of the fifth bending forming assembly 5.

[0038] Example three

[0039] Reference Figures 1-8As shown in the technical solutions of the above embodiments, for the specific structural design of each bending forming assembly, the first bending forming assembly 1 comprises a first positioning wheel 11, a first connecting block 12, a first movable roller 13, a second movable roller 14 and a first hand lever 15, the first connecting block 12 is rotatably connected with the first positioning wheel 11, the first movable roller 13 and the second movable roller 14 respectively, and all are connected in the manner of hole shaft gap cooperation, the first positioning wheel 11 is installed with a fixed roller shaft in the middle and the fixed roller shaft is installed perpendicularly to the first reference surface, the first movable roller 13 and the second movable roller 14 are the same in structure and are both installed on a movable roller shaft, the axial directions of the fixed roller shaft and the movable roller shaft are parallel to each other, the first positioning wheel 11 is rotatably installed on the first reference surface 70 in the manner of hole shaft gap cooperation, and the first hand lever 15 is inserted into the side of the first connecting block 12 and drives the first connecting block 12 to rotate around the shaft core of the first positioning wheel 11. In addition, the first movable roller 13 is located between the first positioning wheel 11 and the second movable roller 14, and the included angle of the shaft cores of the three is a right angle, the overall shape of the first connecting block 12 is L-shaped, two blind holes are processed on the outside of the first connecting block 12, the first hand lever 15 is inserted into the blind holes and can be pulled to realize pipe bending operation, the hole shaft gap cooperation is adopted between the blind holes and the first hand lever 15, or threads can be processed on the two respectively to be connected in the threaded manner, the first hand lever 15 can be inserted into the connecting block in different directions for operation, and the first hand lever 15 can be taken out after pipe bending operation is completed so as not to interfere with pipe bending operation of the next station.

[0040] Taking the first bending forming assembly 1 as an example, the component names of other bending forming assemblies are similar, the second bending forming assembly 2 comprises a second positioning wheel 21, a second connecting block 22, a third movable roller 23, a fourth movable roller 24 and a second hand lever 25, the third bending forming assembly 3 comprises a third positioning wheel 31, a third connecting block 32, a fifth movable roller 33, a sixth movable roller 34 and a third hand lever, the fourth bending forming assembly 4 comprises a fourth positioning wheel 41, a fourth connecting block 42, a seventh movable roller 43, an eighth movable roller 44 and a fourth hand lever, and the fifth bending forming assembly 5 comprises a fifth positioning wheel 51, a fifth connecting block 52, a ninth movable roller 53, a tenth movable roller 54 and a fifth hand lever.

[0041] Further, the first clamping seat 71 and the second clamping seat 81 are the same in structure and both comprise a pressing block and a cushion block, arc-shaped grooves and through holes are processed on the pressing block and the cushion block, the arc-shaped grooves are matched with the hollow pipe to be processed and correspond to the positioning wheels on the bending assembly, screw holes are processed on the first vertical plate 7 or the second vertical plate 8 and the through holes of the pressing block and the cushion block are connected through bolts.

[0042] Working principle: the first pipe bending operation is as follows, Figure 4As shown, the bottom plate 6 is assembled with each stand, and a standard straight copper pipe (a hollow pipe to be processed) is clamped and fixed by using two first clamping seats 71 and a first bending assembly, the upper and lower arc-shaped grooves of the first clamping seat 71 clamp the hollow pipe to be processed and correspond to the initial position between the first positioning wheel 11 and the first movable roller 13, then the first hand lever 15 is inserted into the side of the first connecting block 12 and is pulled clockwise, so that the second movable roller 14 is rotated by 90 degrees (a part of the hollow pipe to be processed is parallel to the second reference surface 80), and then the second clamping seat 81 is fixed, as shown in Figure 5 As shown, the second time of pipe bending operation, the upper and lower arc-shaped grooves of the second clamping seat 81 clamp the hollow pipe to be processed and correspond to the initial position between the second positioning wheel 21 and the third movable roller 23, the second hand lever 25 is inserted into the side of the second connecting block 22 and is pulled counterclockwise, so that the fourth movable roller 24 is rotated by 90 degrees and is blocked and limited by the second positioning pin 82, as shown in Figure 6 As shown, the third time of pipe bending operation, the third hand lever is inserted into the side of the third connecting block 32 and is pulled clockwise, so that the sixth movable roller 34 is rotated by 90 degrees and is blocked and limited by the second positioning pin 82, as shown in Figure 7 As shown, the fourth time of pipe bending operation, the upper and lower arc-shaped grooves of the first clamping seat 71 clamp the hollow pipe to be processed and correspond to the initial position between the fourth positioning wheel 41 and the seventh movable roller 43, the fourth hand lever is inserted into the side of the fourth connecting block 42 and is pulled clockwise, so that the eighth movable roller 44 is rotated by 45 degrees and is blocked and limited by the stepped positioning pin 72, as shown in Figure 8 As shown, the fifth time of pipe bending operation, the fifth hand lever is inserted into the side of the fifth connecting block 52 and is pulled clockwise, so that the tenth movable roller 54 is rotated by 90 degrees to obtain the final pipe bending product.

[0043] In the device of the utility model, the assembly and cooperation relationship of each component and the material are prior art or material, and the skilled in the art can directly purchase or order according to the required product model and specification.

[0044] The above is only the preferred embodiment of the utility model, and the well-known specific structure and characteristics in the scheme are not described in detail. For those skilled in the art, the utility model is not limited to the details of the above embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered within the protection range of the utility model.

Claims

1. A bending forming device for hollow tubes comprising a base plate (6), characterized in that, The first clamping seat (71) and the first bending forming assembly (1) are installed on the first reference surface (70) of the first vertical plate (7), and the first reference surface (70) is parallel to the horizontal surface of the bottom plate (6).

2. A bending forming apparatus for a hollow pipe according to claim 1, wherein The second clamping seat (81), the second bending forming assembly (2) and the third bending forming assembly (3) are installed on the second reference surface (80) of the second vertical plate (8), and the second reference surface (80) is located at the set position of the first bending forming assembly (1) for bending the hollow pipe to be processed.

3. A bending forming apparatus for a hollow pipe according to claim 1, wherein The second reference surface (80) and the first reference surface (70) form an acute angle.

4. A bending and forming apparatus for hollow tubing as defined in claim 3, wherein The first positioning pin (83) and the second positioning pin (82) are further installed on the second reference surface (80), the first positioning pin (83) is located at the set position of the second bending forming assembly (2) for bending the hollow pipe to be processed, and the second positioning pin (82) is located at the set position of the third bending forming assembly (3) for bending the hollow pipe to be processed.

5. A bending and forming apparatus for hollow tubing as defined in claim 1, wherein, The fourth bending forming assembly (4) is installed on the side of the first vertical plate (7), and the third vertical plate (9) is provided with a corresponding avoiding space for the fourth bending forming assembly (4).

6. A bending and forming apparatus for hollow tubing as defined in claim 1, wherein, The first vertical plate (7) is provided with a stepped positioning pin (72) located at the set position of the fourth bending forming assembly (4) for bending the hollow pipe to be processed.

7. A bending and forming apparatus for hollow tubing as defined in claim 6, wherein The first vertical plate (7) is further processed with an avoiding surface corresponding to the third reference surface (90), and the avoiding surface is staggered with the bending track of the fifth bending forming assembly (5).

8. A bending and forming apparatus for hollow tubing as defined in claim 7, wherein ​ 9. A bending and forming device for hollow tubing according to any one of claims 1-8, characterized in that The first bending forming assembly (1) comprises a first positioning wheel (11), a first connecting block (12), a first movable roller (13), a second movable roller (14) and a first hand lever (15), the first connecting block (12) is rotatably connected with the first positioning wheel (11), the first movable roller (13) and the second movable roller (14) respectively, the first movable roller (13) and the second movable roller (14) are identical in structure, the first positioning wheel (11) is rotatably installed on a first reference surface (70), and the first hand lever (15) is inserted into a side of the first connecting block (12) and drives the first connecting block (12) to rotate around the axis core of the first positioning wheel (11).

10. A bending and forming apparatus for hollow tubing as defined in claim 9, wherein The first clamping seat (71) and the second clamping seat (81) are identical in structure and each comprise a pressing block and a pad, arc-shaped grooves and through holes are formed in the pressing block and the pad, the arc-shaped grooves are matched with the hollow pipe to be machined, screw holes are formed in the first vertical plate (7) or the second vertical plate (8) and are matched with the through holes of the pressing block and the pad through bolts.

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