Modularized tool for bending heat pipe

Abstract

The utility model discloses a modular tool for heat pipe bending, which belongs to the technical field of heat pipe bending forming and comprises an upper tool, a lower tool and a module tool group. The module tool set is composed of three annular sub-tools, and the arc face of the middle sub-tool is a bent pipe attaching face. The modular tool for bending the heat pipe can be quickly assembled into a set of heat pipe bending tool. And meanwhile, the pipe bending requirements of heat pipes with different sizes and pipe bending radiuses can be met on the premise that the use of the upper tool and the use of the lower tool are not changed by replacing the matching of different sub-tools. Due to high-adaptability combination and flexible matching assembly of the module tool set, the tool production cost can be reduced to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat pipe elbow forming technical field especially relates to a heat pipe elbow modular tooling. BACKGROUND

[0002] Heat pipe technology is applied in aerospace, military industry, information technology and various industries with high heat conduction capacity, low thermal resistance, strong environmental adaptability and other characteristics, and is an important component in various heat dissipation systems. In the field of normal temperature heat pipe, the "H" type heat pipe is often used as a heat conduction medium, which has the advantages of high cost performance and high thermal conductivity. Among them, the aluminum "H" type normal temperature heat pipe is widely used because of its light weight and easy forming.

[0003] The "H" type normal temperature heat pipe usually needs to be bent in the actual installation process to meet the different cold and hot source layout requirements. The "H" type normal temperature heat pipe material is usually made of aluminum, so the heat pipe can be manually bent at room temperature. The bending process of different pipe diameters, machining requirements, different bending angles and different bending radii usually needs to replace the whole tooling, which increases the cost of heat pipe bending.

[0004] Chinese patent CN222133088U discloses a pipe bending device for steel pipe fittings, which comprises a mounting disc, a positioning stud fixedly welded at the center of the top end of the mounting disc, a U-shaped clamping plate sleeved outside the positioning stud, a bending disc fixedly arranged at the center of the positioning stud, a first bending groove formed at the center of the outer surface of the bending disc, the bending disc located between the inner walls of the U-shaped clamping plate, a positioning nut threadedly connected to the top end of the positioning stud, and the top end of the U-shaped clamping plate in contact with the positioning nut. When the pipe bending device is used, the steel pipe fitting is inserted between the bending disc and the pushing disc, so that the two sides of the steel pipe fitting are located in the first and second bending grooves, respectively, and one end of the steel pipe fitting is connected with the limiting ring. Then, the U-shaped clamping plate is rotated by pushing the connecting handle, so that the pushing disc pushes one side of the steel pipe fitting. Since the limiting ring and the bending disc can limit the two sides of the cylinder pipe fitting, the pipe bending device has the advantages of simple structure and convenient use. However, the pipe bending structure is complex, and the whole tooling needs to be replaced for the bending process of different pipe diameters, machining requirements, different bending angles and different bending radii.

[0005] Therefore, a modular bending tooling capable of modularly disassembling the intermediate tooling set and repeatedly using the upper and lower main molds, and a heat pipe bending device capable of adapting to different shapes and bending radii are urgent problems to be solved by those skilled in the art. SUMMARY

[0006] Therefore, the utility model provides a heat pipe elbow modular tooling to solve the deficiency in prior art, and the contents of the utility model are as follows:

[0007] The technical point of the heat pipe bending modular tooling is that the tooling comprises an upper tooling, a lower tooling and a module tooling group fixed between the upper tooling and the lower tooling; the diameters of the upper tooling and the lower tooling are the same, and the diameter of the module tooling group is smaller than the diameters of the upper tooling and the lower tooling to form a bending groove for accommodating a heat pipe profile.

[0008] In order to better realize the above technical points, the module tooling group in the heat pipe bending modular tooling comprises a first sub-tooling, a second sub-tooling and a third sub-tooling from top to bottom.

[0009] In order to better realize the above technical points, the lower surface of the upper tooling in the heat pipe bending modular tooling is in contact with the upper surface of the first sub-tooling, and the upper surface of the lower tooling is in contact with the lower surface of the third sub-tooling.

[0010] In order to better realize the above technical points, the combination of the upper tooling, the lower tooling and the module tooling group in the heat pipe bending modular tooling is uniformly provided with screw holes of the same size, and is fixed by screws during assembly.

[0011] In order to better realize the above technical points, the hole of the lower tooling in the heat pipe bending modular tooling is a threaded blind hole.

[0012] In order to better realize the above technical points, the cylindrical surface of the second sub-tooling in the heat pipe bending modular tooling is a heat pipe profile contact surface.

[0013] In order to better realize the above technical points, the contact surface in the heat pipe bending modular tooling can be a plane, a circular arc surface or other irregular surfaces.

[0014] In order to better realize the above technical points, the thickness of the first sub-tooling and the third sub-tooling in the heat pipe bending modular tooling should be greater than the thickness of the fin of the heat pipe profile.

[0015] In order to better realize the above technical points, the material of the module tooling group in the heat pipe bending modular tooling is one of aluminum alloy and stainless steel.

[0016] In order to better realize the above technical points, the material of the module tooling group in the heat pipe bending modular tooling is one of polytetrafluoroethylene and nylon.

[0017] Compared with the prior art, the heat pipe bending modular tooling has the following beneficial effects:

[0018] The utility model discloses a kind of hot pipe bending pipe modular tooling, including upper tooling, lower tooling and module tooling group.The module tooling group is composed of 3 circular ring sub-tooling, wherein the arc surface of middle sub-tooling is bending pipe fitting surface.Through changing the thickness and diameter of 3 circular ring sub-tooling in module tooling group, and being fixed to form module tooling group and same pair of bottom die and upper die collocation, it is suitable for different cross-sectional dimension, bending pipe radius, bending pipe angle hot pipe profile bending pipe demand. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a kind of hot pipe bending pipe modular tooling structural diagram of the utility model;

[0020] Figure 2 It is the assembly cross section diagram of a kind of hot pipe bending pipe modular tooling of the utility model;

[0021] Figure 3 It is the structural diagram of second sub-tooling of the utility model;

[0022] Figure 4 It is the structural diagram of first sub-tooling and third sub-tooling of the utility model.

[0023] 1-upper tooling;2-lower tooling;3-module tooling group;4-hot pipe profile;301-first sub-tooling;302-second sub-tooling;303-third sub-tooling. DETAILED DESCRIPTION

[0024] The following reference description drawing introduces the multiple preferred embodiments of the utility model, so that its technical content is more clear and convenient to understand.The utility model can be embodied by many different forms of embodiments, and the protection scope of the utility model is not limited to the embodiments mentioned in the text.

[0025] In the drawings, components with the same structure are indicated by the same reference numerals, and components with similar structures or functions are indicated by similar reference numerals.The size and thickness of each component shown in the drawings are arbitrarily shown, and the size and thickness of each component are not limited by the utility model.In order to make the drawing clearer, the thickness of some components is appropriately exaggerated in the drawing.

[0026] As Figure 1 Shown in the drawing is a kind of hot pipe bending pipe modular tooling, including upper tooling 1, lower tooling 2, module tooling group 3 fixed between upper tooling 1 and lower tooling 2;The diameter of the upper tooling 1, lower tooling 2 is same, the diameter of the module tooling group 3 is less than the diameter of the upper tooling 1 and lower tooling 2 to form a bending groove for accommodating hot pipe profile 4, for example, when the thickness of upper tooling 1, lower tooling 2 is selected as 2mm, it is suitable for I-shaped φ15 hot pipe profile 4 bending pipe.

[0027] Further, the module tool group 3 of the utility model from top to bottom includes first sub tool 301 as shown in the drawing, second sub tool 302 as shown in the drawing and third sub tool 303 as shown in the drawing, as preferred, the thickness of first sub tool 301 is 2mm, higher than fin height 1.5mm of heat pipe profile (4), the thickness of second sub tool 302 adapts to heat pipe profile 4 pipe diameter, and tool diameter corresponds to heat pipe profile (4) elbow pipe diameter. Figure 3 Figure 4 Figure 3

[0028] Further, the lower surface of the upper tool 1 of the utility model is in contact with the upper surface of the first sub tool 301, and the upper surface of the lower tool 2 is in contact with the lower surface of the third sub tool 303.

[0029] Further, the combination of the upper tool 1, the lower tool 2 and the module tool group 3 of the utility model is uniformly provided with a through hole with a diameter of φ10, and is fixed by screws during assembly, as preferred, all tools are connected by counter bore bolts of corresponding sizes; the hole of the lower tool 2 of the utility model is a threaded blind hole. Figure 2

[0030] Further, the cylindrical surface of the second sub tool 302 of the utility model is a heat pipe profile 4 contact surface.

[0031] Further, the contact surface of the utility model can be a plane, a circular arc surface or other irregular surfaces.

[0032] Further, the thickness of the first sub tool 301 and the third sub tool 303 of the utility model should be greater than the fin thickness of the heat pipe profile 4.

[0033] Further, the material of the module tool group 3 of the utility model is consistent, which is one of aluminum alloy and stainless steel and other metal materials or one of polytetrafluoroethylene and nylon and other high molecular polymers.

[0034] Further, the material of the upper tool (1), the lower tool (2) and the module tool group (3) in the heat pipe elbow modular tooling of the utility model is aluminum alloy.

[0035] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.​​​​

Claims

1. A hot tube bending modular tooling characterized by, The device comprises an upper tooling (1), a lower tooling (2), and a module tooling group (3) fixed between the upper tooling (1) and the lower tooling (2); the upper tooling (1) and the lower tooling (2) have the same diameter, and the diameter of the module tooling group (3) is smaller than that of the upper tooling (1) and the lower tooling (2) to form a bending groove for accommodating a heat pipe profile (4).

2. The hot-tube bending modular tooling of claim 1, wherein, The module tooling group (3) comprises a first sub-tooling (301), a second sub-tooling (302), and a third sub-tooling (303) from top to bottom.

3. The hot-tube bending modular tooling of claim 2, wherein, The lower surface of the upper tooling (1) is in contact with the upper surface of the first sub-tooling (301), and the upper surface of the lower tooling (2) is in contact with the lower surface of the third sub-tooling (303).

4. The heat pipe bending modular tooling of claim 1, wherein, The combination of the upper tooling (1), the lower tooling (2), and the module tooling group (3) has screw holes of the same size, and the assembly is fixed by screws.

5. The hot-tube bending modular tooling of claim 4, wherein, The hole of the lower tooling (2) is a threaded blind hole.

6. The hot-tube bending modular tooling of claim 2, wherein, The cylindrical surface of the second sub-tooling (302) is a heat pipe profile (4) contact surface.

7. The hot-tube bending modular tooling of claim 6, wherein, The contact surface can be a plane, a circular arc surface, or other irregular surfaces.

8. The hot-tube bending modular tooling of claim 2, wherein, The thickness of the first sub-tooling (301) and the third sub-tooling (303) should be greater than the fin thickness of the heat pipe profile (4).

9. The hot-tube bending modular tooling of claim 2, wherein, The material of the module tooling group (3) is one of aluminum alloy and stainless steel.

10. The hot-tube bending modular tooling of claim 2, wherein, The material of the module tooling group (3) is one of polytetrafluoroethylene and nylon.

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