A heat pipe bending device

Abstract

The product relates to the field of heat pipe production and provides a heat pipe bending device which comprises a base, a fixing mechanism for fixing a heat pipe, a bending mechanism arranged on one side of the fixing mechanism and used for being pressed on the heat pipe and bending the heat pipe in cooperation with the fixing mechanism, a rolling pressure assembly, and a buffer assembly. The rolling pressure assembly is arranged on one side of the fixing mechanism and is used for rolling pressure on the heat pipe. The buffer assembly is arranged between the rolling pressure assembly and the fixing mechanism and is used for increasing a contact area of the rolling pressure assembly and the heat pipe. A rotating mechanism is connected to the bending mechanism at an output end and is used for driving the bending mechanism to rotate and further bend the heat pipe. The buffer assembly arranged between the rolling pressure assembly and the heat pipe increases the contact area of the rolling pressure assembly and the heat pipe, reduces stress of the heat pipe, avoids deformation of the heat pipe and damage of the heat pipe, and drives the rolling pressure assembly to automatically bend the heat pipe through the rotating mechanism, so that production efficiency and stability of product quality are improved.

Description

Technical Field

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

[0002] A heat pipe is a passive thermal management element that utilizes the principle of phase change to achieve highly efficient heat transfer, with a heat transfer efficiency hundreds or even thousands of times that of metallic copper. Due to its "passive high efficiency and isothermal heat transfer" characteristics, heat pipes have become an indispensable thermal management technology in fields such as electronics, aerospace, and new energy. After a series of processes including cutting and shrinking, the heat pipe needs to be bent to adapt to complex spatial layouts while optimizing the heat conduction path.

[0003] In related technologies, heat pipe bending devices often have the bending mechanism directly pressing on the heat pipe, which puts a lot of stress on the heat pipe and can easily cause it to flatten and deform. At the same time, existing technologies often use manual bending of the heat pipe, which is inefficient, inconsistent, and has unstable precision. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a heat pipe bending device that prevents heat pipe deformation and improves bending efficiency.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A heat pipe bending device, comprising: Base; A fixing mechanism, mounted on the base, is used to fix the heat pipe; A bending mechanism is mounted on the base and located on one side of the fixing mechanism; the bending mechanism includes a rolling assembly and a buffer assembly; the rolling assembly is disposed opposite to the fixing mechanism and is used to press on the heat pipe and cooperate with the fixing mechanism to bend the heat pipe; the buffer assembly is disposed between the rolling assembly and the fixing mechanism to increase the force-bearing area of ​​the heat pipe; A rotating mechanism, the output end of which is connected to the bending mechanism, is used to rotate and drive the bending mechanism to bend the heat pipe.

[0007] The fixing mechanism and the buffer assembly have several correspondingly arranged grooves on their opposite sides.

[0008] The technical solutions described in the embodiments of this application have at least the following technical effects; This device includes a buffer assembly positioned between the rolling assembly and the fixing mechanism. When the rolling assembly presses against the heat pipe on the fixing mechanism, it pushes the buffer assembly between the rolling assembly and the heat pipe to press against the heat pipe, increasing the contact area between the rolling assembly and the heat pipe, reducing the force exerted by the rollers on the heat pipe, and preventing excessive pressure from damaging the heat pipe. The device also includes a rotating mechanism that drives the bending mechanism to rotate, bending the heat pipe automatically. This mechanical bending improves work efficiency and bending accuracy stability, while reducing worker labor intensity and saving labor costs.

[0009] In some embodiments, the fixing mechanism includes: A fixed mold assembly, mounted on the base, is used to house the heat pipe; The moving mold assembly is disposed opposite to the fixed mold assembly and is used to press onto and fix the heat pipe.

[0010] In some embodiments, the fixed mold assembly includes a straight mold disposed relative to the moving mold assembly for cooperating with the moving mold assembly to fix the heat pipe; and a curved mold located on one side of the straight mold and disposed opposite to the bending mechanism for cooperating with the bending mechanism to bend the heat pipe.

[0011] In some embodiments, the curved mold is fixedly mounted on the base.

[0012] In some embodiments, the rolling assembly includes: A rotating plate is rotatably mounted on the base with the curved mold as the center. Rollers, mounted on a rotating plate and corresponding to the curved mold, are used to roll heat pipes; A telescopic actuator, the output end of which is connected to the roller, is used to drive the roller to perform telescopic movement.

[0013] In some embodiments, the buffer component includes: A pressure block is disposed on the rotating plate and located between the roller and the curved mold to increase the force-bearing area of ​​the heat pipe; A reset spring is fixed at one end on the rotating plate and movably connected to the pressure block at the other end, used to drive the pressure block back to its original position.

[0014] In some embodiments, the rotating mechanism includes; A sliding groove is provided on the base, surrounding the curved mold; A rotary drive component, which passes through the sliding groove and is connected to the bending mechanism, is used to drive the bending mechanism to rotate along the sliding groove. Attached Figure Description

[0015] Figure 1This is a schematic diagram of a heat pipe bending device according to the present invention; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the fixed mold assembly structure of this utility model; Figure 4 This is a schematic diagram of the buffer component structure of this utility model.

[0016] The following are the labels in the diagram: 10, base; 20, fixing mechanism; 21, fixed mold assembly; 211, straight mold; 212, curved mold; 22, moving mold assembly; 30, bending mechanism; 31, rolling assembly; 311, rotating plate; 312, roller; 313, telescopic actuator; 32, buffer assembly; 321, pressure block; 322, return spring; 40, rotating mechanism; 41, sliding bend; 42, rotating drive component; 50, tube groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 A heat pipe bending device includes a base 10. A fixing mechanism 20 is disposed on the base 10 for fixing the heat pipe. A bending mechanism 30 is disposed on one side of the fixing mechanism 20 for pressing onto the heat pipe and cooperating with the fixing mechanism 20 to bend the heat pipe, including a rolling assembly 31 and a buffer assembly 32. The rolling assembly 31 is disposed opposite to the fixing mechanism 20 for rolling the heat pipe. The buffer assembly 32 is disposed between the rolling assembly 31 and the fixing mechanism 20 to increase the force-bearing area of ​​the heat pipe. A rotating mechanism 40 has its output end connected to the bending mechanism 30 for driving the bending mechanism 30 to rotate and thus bend the heat pipe. Corresponding grooves 50 are formed on the opposite surfaces of the fixing mechanism 20 and the buffer assembly 32.

[0019] Understandably, the fixing mechanism 20 is a component that fixes one end of the heat pipe, such as a clamp or a constant pressure fixing mechanism 20, but is not limited to these. The bending mechanism 30 is a component that applies pressure to the unfixed end of the heat pipe, thereby bending the heat pipe, such as a roll bending mechanism 30 or a push bending mechanism 30, but is not limited to these. The rolling assembly 31 is a component that applies pressure by rolling on the heat pipe, thereby subjecting the heat pipe to uniform extrusion pressure along the bending direction of the bending die 212, such as a single roller 312 rolling mechanism or a double roller 312 rolling mechanism, but is not limited to these. The buffer assembly 32 is a component that reduces the force per unit area on the heat pipe. For example, it can be a soft pad placed between the rolling assembly 31 and the heat pipe, or a hard pad with an area larger than the roller 312, but it is not limited to these. The rotating mechanism 40 is a component that drives the rolling assembly 31 to rotate, causing plastic deformation of the heat pipe and thus bending it. For example, it can be a nut and screw rotating mechanism, or a pressure rotating mechanism, but it is not limited to these. The tube groove 50 is a recess formed on the fixing mechanism 20 and the buffer assembly 32 for placing the heat pipe. For example, it can be a circular groove with the same diameter as the heat pipe, or a trapezoidal groove, but it is not limited to these. The number of tube grooves 50 determines the number of heat pipes processed simultaneously. For example, one tube groove 50 can be formed to process one heat pipe at a time, or multiple tube grooves 50 can be formed to process multiple heat pipes simultaneously, but it is not limited to these.

[0020] As can be seen from the above, this device, through the buffer component 32 located between the rolling assembly 31 and the fixing mechanism 20, increases the contact area between the rolling assembly 31 and the heat pipe, thereby reducing the pressure exerted by the rolling assembly 31 on the heat pipe, lowering the risk of heat pipe deformation, and improving product yield. The device also includes a rotating mechanism 40, which rotates the rolling assembly 31, reducing worker workload and improving product quality stability. The tube groove 50 facilitates the positioning and placement of the heat pipe while preventing it from being flattened due to excessive pressure from the fixing mechanism 20. Multiple tube grooves 50 allow for the simultaneous processing of multiple heat pipes, improving production efficiency.

[0021] As is known, in some embodiments, please refer to Figure 1 The fixing mechanism 20 includes: a fixed mold assembly 21, which is disposed on the base 10 and is used to place the heat pipe; and a moving mold assembly 22, which is disposed corresponding to the fixed mold assembly 21 and is used to cooperate with the fixed mold assembly 21 to fix the heat pipe.

[0022] Understandably, the fixed mold assembly 21 is a component used to house the heat pipe. For example, it can be a fixing block with heat pipe grooves or a fixing block with clamps, but it is not limited to these. The moving mold assembly 22 is a component that presses against the surface of the fixed mold assembly 21 through telescopic movement to fix the heat pipe. For example, it can be a hydraulically driven telescopic mechanism or a pneumatically driven telescopic mechanism, but it is not limited to these.

[0023] With this configuration, the fixed mold assembly 21 is used to place the heat pipe. However, when placed on the fixed mold, the moving mold assembly 22 presses against the fixed mold to fix the heat pipe. When the heat pipe needs to be released, the moving mold moves backward to release it, which improves the heat pipe clamping efficiency.

[0024] As is known, in some embodiments, please refer to Figure 1 and Figure 3 The fixed mold assembly 21 includes a straight mold 211 disposed relative to the moving mold assembly 22 for cooperating with the moving mold assembly 22 to fix the heat pipe. It also includes a curved mold 212 disposed on the side of the straight mold 211 near the bending mechanism 30 for cooperating with the bending mechanism 30 to bend the heat pipe. The curved mold 212 is fixedly disposed on the base 10.

[0025] Understandably, the straight mold 211 is a component that fixes part of the heat pipe in the fixed mold assembly 21, while the curved mold 212 is a component that deforms the unfixed heat pipe along the bending direction of the curved mold 212 to obtain the desired bent heat pipe. Therefore, the straight mold 211 and the curved mold 212 are molds that are connected in various forms to form a J-shape. For example, the straight mold 211 and the curved mold 212 can be a one-piece molded J-shape, or they can be separately molded but fitted together to form a J-shape, etc., but not limited to these methods. Since the latter method only requires replacing the curved mold 212 to bend the heat pipe to different angles, saving mold material, the latter installation method is recommended.

[0026] With this configuration, the straight mold 211 and the curved mold 212 are manufactured and installed separately. When the straight mold 211 is damaged, the straight mold 211 is replaced, and when the curved mold 212 is damaged, the curved mold 212 is replaced. This facilitates quick mold replacement while saving mold manufacturing costs.

[0027] As is known, in some embodiments, please refer to Figure 1 The rolling assembly 31 includes a rotating plate 311, which is mounted on the base 10 and rotatably connected to the curved mold 212. A roller 312, mounted on the rotating plate 311 and corresponding to the curved mold 212, is used to roll the heat pipe. A telescopic actuator 313, with its output end connected to the roller 312, is used to drive the roller 312 to perform telescopic movement.

[0028] Understandably, when the roller 312 presses against the heat pipe, the rotating mechanism 40 drives the rotating plate 311 to rotate, which in turn drives the roller 312 to rotate around the curved mold 212. Therefore, the rotating plate 311 and the curved mold 212 are connected by a rotating component, such as a gear rotating mechanism 40 or a rotating shaft component, but not limited to these. The roller 312 is the component that presses against the heat pipe and rolls it along the bending direction of the curved mold 212. For example, it can be a flat roller 312 with a flat surface, or a bending forming roller 312 with grooves on its surface that mate with the grooves on the curved mold 212, but not limited to these. The telescopic actuator 313 is the component that drives the roller 312 to press against the heat pipe or to release the heat pipe. For example, it can be an electric push rod mechanism or a nut screw mechanism, but not limited to these.

[0029] As is known, in some embodiments, please refer to Figure 1 and Figure 4 The buffer assembly 32 includes a pressure block 321, which is disposed on the rotating plate 311 and located between the roller 312 and the curved mold 212, to increase the force-bearing area of ​​the heat pipe. A return spring 322, with its movable end connected to the pressure block 321, is used to drive the pressure block 321 back to its original position.

[0030] Understandably, the roller 312 presses against the pressure block 321 when it presses forward, and drives the pressure block 321 to press against the heat pipe. This pressure block 321 can be square, round, or similar, but is not limited to these. The return spring 322 is a component that automatically returns the pressure block 321 to between the roller 312 and the curved mold 212 when the rolling assembly 31 retracts. This spring can be a spring, or a combination of a telescopic rod and a spring, but is not limited to these. Because the pressure block 321 experiences a constantly changing force direction during the rotation of the roller 312 while rolling the heat pipe, the roller 312 moves in the bending direction of the curved mold 212. Therefore, the pressure block 321 and the return spring 322 are movably connected, for example, by a hinge or a rolling bearing, but are not limited to these.

[0031] With this configuration, since the contact area between the pressure block 321 and the heat pipe is larger than that between the roller 312 and the heat pipe, the force per unit area on the heat pipe is reduced when the pressure block 321 presses on it, thus reducing the possibility of heat pipe deformation and preventing damage. Simultaneously, the pressure block 321 is connected to a return spring 322, allowing it to automatically return to its original position after the bending process is complete, eliminating the need for manual adjustment and reducing the labor intensity of workers.

[0032] As is known, in some embodiments, please refer to Figure 1 and Figure 2The rotating mechanism 40 includes a sliding groove 41, which surrounds the curved mold 212 and is mounted on the base 10. A rotating drive 42 passes through the sliding groove 41 and is connected to the bending mechanism 30, for driving the bending mechanism 30 to rotate along the sliding groove 41.

[0033] Understandably, the rotary drive component 42 rotates along the sliding bend 41, thereby limiting the angle of the rolled heat pipe through the sliding bend 41. For example, it can be a circular groove with a fixed angle, or it can be a method of limiting the angle of the heat pipe after the heat pipe of the rolling assembly 31 is rolled by setting a limit pin in the groove, etc., but it is not limited to these. The rotary drive component 42 is a component that drives the bending mechanism 30 to rotate, causing the heat pipe to undergo plastic deformation. For example, it can be a gear rotation mechanism, or a crank-slider rotation mechanism, etc., but it is not limited to these.

[0034] With this design, the sliding bend 41 avoids excessive rolling rotation, which could damage the heat pipe due to an excessively large bending angle, thus improving the heat pipe yield.

[0035] As can be seen from the above, one end of the heat pipe is placed on the straight mold 211 of the fixed mold assembly 21, and the other end is pressed on the curved mold 212. The fixed mold assembly 21 is activated to press the heat pipe on the straight mold 211. The bending mechanism 30 is activated, and the rolling assembly 31 drives the buffer assembly 32 to press on the heat pipe. The rotating mechanism 40 is activated, and the rotating mechanism 40 drives the rolling assembly 31 to rotate around the curved mold 212 to bend the heat pipe.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A heat pipe bending device, characterized in that, include: Base; A fixing mechanism, mounted on the base, is used to fix the heat pipe; A bending mechanism is mounted on the base and located on one side of the fixing mechanism; the bending mechanism includes a rolling assembly and a buffer assembly; the rolling assembly is disposed opposite to the fixing mechanism and is used to press on the heat pipe and cooperate with the fixing mechanism to bend the heat pipe; the buffer assembly is disposed between the rolling assembly and the fixing mechanism to increase the force-bearing area of ​​the heat pipe; A rotating mechanism, the output end of which is connected to the bending mechanism, is used to rotate and drive the bending mechanism to bend the heat pipe; The fixing mechanism and the buffer assembly have several correspondingly arranged grooves on their opposite sides.

2. The heat pipe bending device as described in claim 1, characterized in that, The fixing mechanism includes: A fixed mold assembly, mounted on the base, is used to house the heat pipe; The moving mold assembly is disposed opposite to the fixed mold assembly and is used to press onto and fix the heat pipe.

3. The heat pipe bending device as described in claim 2, characterized in that, The fixed mold assembly includes a straight mold disposed relative to the moving mold assembly for cooperating with the moving mold assembly to fix the heat pipe; and a curved mold located on one side of the straight mold and disposed opposite to the bending mechanism for cooperating with the bending mechanism to bend the heat pipe.

4. A heat pipe bending device as described in claim 3, characterized in that, The curved mold is fixedly mounted on the base.

5. A heat pipe bending device as described in claim 4, characterized in that, The rolling assembly includes: A rotating plate is rotatably mounted on the base with the curved mold as the center. Rollers, mounted on a rotating plate and corresponding to the curved mold, are used to roll heat pipes; A telescopic actuator is disposed on the rotating plate, and the output end of the telescopic actuator is connected to the roller to drive the roller to perform telescopic movement.

6. A heat pipe bending device as described in claim 5, characterized in that, The buffer component includes: A pressure block is disposed on the rotating plate and located between the roller and the curved mold to increase the force-bearing area of ​​the heat pipe; A reset spring is fixed at one end on the rotating plate and movably connected to the pressure block at the other end, used to drive the pressure block back to its original position.

7. A heat pipe bending device as described in claim 5, characterized in that, The rotating mechanism includes; A sliding groove is provided on the base, surrounding the curved mold; A rotary drive component, which passes through the sliding groove and is connected to the bending mechanism, is used to drive the bending mechanism to rotate along the sliding groove.

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