Heat pipe powder filling and rod pressing jig

Abstract

The utility model provides a heat pipe powder filling and rod pressing jig, which belongs to the field of heat pipe powder filling and comprises a mounting plate capable of moving up and down, a plurality of heat pipes are arranged below the mounting plate, funnels are mounted on the heat pipes, and central rods are arranged in the heat pipes; a pressing rod assembly; a screw rod is fixed to the upper end of the round rod, a nut abutting against the upper end of the mounting plate is connected to the screw rod in a threaded mode, a pressing plate is fixed to the bottom of the round rod, a spring is mounted between the pressing plate and the mounting plate, a limiting groove is coaxially formed in the bottom of the pressing plate, and the upper end of the center rod is located in the limiting groove. The center rod can be limited through the limiting groove, so that the center rod and the heat pipe are coaxial, the thickness of a cavity formed by the center rod and the heat pipe is more uniform, heat conduction powder can be evenly distributed in the cavity, the machining quality of the heat pipe can be guaranteed, meanwhile, the center rod is limited, and the situation that the center rod jumps to affect powder filling operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipe powder filling, in particular to a heat pipe powder filling and pressing rod jig. Background Art

[0002] Generally, the manufacturing method of a heat pipe is to first prepare a pipe fitting, close one end of the pipe fitting to form a closed end, and the other end is an open end. Insert the nozzle of a funnel into the open end of the pipe fitting, and at the same time insert a central rod into the pipe fitting through the funnel. Then inject a predetermined volume of heat-conducting powder such as copper powder into the funnel, so that the heat-conducting powder will be injected into the pipe fitting through the nozzle. Subsequently, remove the funnel, heat the pipe fitting together with the central rod and the heat-conducting powder, so that the heat-conducting powder is sintered together and adheres to the inner wall of the pipe fitting. After sintering is completed, remove the central rod, pour in a small amount of water, and press and seal the open end of the pipe fitting in a vacuum environment, thus completing the manufacture of the heat pipe.

[0003] In order to ensure that the heat-conducting powder is filled evenly and stably between the heat pipe and the central rod, a vibration motor is used to drive the heat pipe to vibrate, but this will also cause the central rod to jump, resulting in uneven filling of the heat-conducting powder and affecting the filling work. Therefore, this application proposes a heat pipe powder filling and pressing rod jig. Summary of the Utility Model

[0004] In view of the deficiencies in the prior art, the utility model provides a heat pipe powder filling and pressing rod jig.

[0005] An embodiment of the utility model provides a heat pipe powder filling and pressing rod jig, including:

[0006] A mounting plate capable of moving up and down. Below the mounting plate, there are a plurality of heat pipes. A funnel is installed on the heat pipe, and a central rod is arranged in the heat pipe.

[0007] A pressing rod assembly; the pressing rod assembly includes a round rod that penetrates the mounting plate and is slidably arranged. A screw rod is fixed to the upper end of the round rod. A nut that abuts against the upper end of the mounting plate is threadedly connected to the screw rod. A pressing plate is fixed to the bottom of the round rod. A spring is installed between the pressing plate and the mounting plate, and a coaxial limiting groove is arranged at the bottom of the pressing plate. The upper end of the central rod is located in the limiting groove.

[0008] Further, a hydraulic cylinder is arranged above the mounting plate, and the output end of the hydraulic cylinder is fixedly connected to the mounting plate.

[0009] Further, it further includes a guiding mechanism for guiding the mounting plate that can move up and down. The guiding mechanism includes a guiding rod fixed to the upper end of the mounting plate, and a sleeve that is sleeved on the guiding rod and is slidably connected to it.

[0010] Further, the upper end of the spring abuts against the bottom of the mounting plate, and the lower end of the spring abuts against the upper end of the pressing plate.

[0011] Further, a through hole is provided through the upper cover of the mounting plate, and the round rod and the screw rod are movably arranged through the through hole.

[0012] Further, the central rod is located in the limiting groove and is movably connected thereto.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model can limit the central rod through the limiting groove, so that the central rod is coaxial with the heat pipe. In this way, the thickness of the chamber formed by the central rod and the heat pipe is more uniform, and further, the distribution of the heat-conducting powder in the chamber can be ensured to be uniform, so that the quality of the heat pipe processing can be guaranteed. At the same time, the central rod is limited to prevent its jumping from affecting the powder filling operation. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a heat pipe powder filling and pressing rod fixture described in an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram when the pressing rod assembly in a heat pipe powder filling and pressing rod fixture described in an embodiment of the utility model is in use.

[0017] Figure 3 It is a schematic diagram of a pressing rod assembly in a heat pipe powder filling and pressing rod fixture described in an embodiment of the utility model.

[0018] In the above-mentioned drawings: 1 mounting plate, 2 hydraulic cylinder, 3 guiding mechanism, 4 heat pipe, 5 funnel, 6 pressing rod assembly, 7 screw rod, 8 round rod, 9 nut, 10 pressing plate, 11 central rod, 12 spring, 13 limiting groove. Detailed Embodiments

[0019] The technical solutions in the utility model will be further described below with reference to the drawings and embodiments.

[0020] As Figures 1 - 3 shown, an embodiment of the utility model provides a heat pipe powder filling and pressing rod fixture, including:

[0021] A mounting plate 1 capable of moving up and down, a hydraulic cylinder 2 is arranged above the mounting plate 1, the output end of the hydraulic cylinder 2 is fixedly connected to the mounting plate 1, and the fixed end of the hydraulic cylinder 2 is installed on a mounting frame (not shown in the figure); In order to ensure the stable movement of the mounting plate 1, a guiding mechanism 3 for guiding the mounting plate 1 capable of moving up and down is further included. The guiding mechanism 3 includes a guiding rod fixed to the upper end of the mounting plate 1, and a sleeve sleeved on the guiding rod and slidably connected thereto, so as to guide the mounting plate 1.

[0022] Below the mounting plate 1, a plurality of heat pipes 4 are provided. A funnel 5 is mounted on the heat pipe 4. A central rod 11 is provided inside the heat pipe 4. A cavity is formed between the central rod 11 and the heat pipe 4. The heat pipe 4 is filled with heat-conducting powder through the funnel 5.

[0023] A pressing rod assembly 6; the pressing rod assembly 6 includes a round rod 8 that penetrates the mounting plate 1 and is slidably arranged. A screw rod 7 is fixed to the upper end of the round rod 8. A through hole is provided through the upper cover of the mounting plate 1. The round rod 8 and the screw rod 7 penetrate the through hole and are movably arranged, so that the round rod 8 and the screw rod 7 can slide in the through hole.

[0024] A nut 9 that is threadedly connected to the screw rod 7 and abuts against the upper end of the mounting plate 1 is provided. A pressing plate 10 is fixed to the bottom of the round rod 8. A spring 12 is installed between the pressing plate 10 and the mounting plate 1. The upper end of the spring 12 abuts against the bottom of the mounting plate 1, and the lower end of the spring 12 abuts against the upper end of the pressing plate 10. A coaxially arranged limiting groove 13 is provided at the bottom of the pressing plate 10, and the limiting groove 13 is also coaxially arranged with the heat pipe 4; the upper end of the central rod 11 is located in the limiting groove 13, and the central rod 11 is located in the limiting groove 13 and is movably connected thereto.

[0025] During use, the hydraulic cylinder 2 drives the mounting plate 1 to move downward, so that the limiting groove 13 at the bottom of the pressing plate 10 is sleeved on the central rod 11. The central rod 11 can be limited through the limiting groove 13, so that the central rod 11 and the heat pipe 4 are coaxially arranged. In this way, the thickness of the chamber formed by the central rod 11 and the heat pipe 4 is more uniform, and further, the distribution of the heat-conducting powder in the chamber can be ensured to be uniform, so that the quality of the processing of the heat pipe 4 can be guaranteed;

[0026] At this time, the spring 12 is in a compressed state. During use, the staff can correspondingly adjust the extension or contraction of the output end of the hydraulic cylinder 2 according to the state of the central rod 11, so as to limit the central rod 11 so that it will not jump and affect the filling of the heat-conducting powder, and at the same time, the central rod 11 will not be over-pressed and deformed and damaged.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A heat pipe powder filling and pressing tool, characterized in that Comprising: A mounting plate (1) capable of moving up and down, a plurality of heat pipes (4) are provided below the mounting plate (1), a funnel (5) is mounted on the heat pipe (4), and a central rod (11) is provided in the heat pipe (4); A pressing rod assembly (6); the pressing rod assembly (6) includes a round rod (8) passing through the mounting plate (1) and slidably arranged, a screw rod (7) is fixed to the upper end of the round rod (8), a nut (9) abutted against the upper end of the mounting plate (1) is threadedly connected to the screw rod (7), a pressing plate (10) is fixed to the bottom of the round rod (8), a spring (12) is mounted between the pressing plate (10) and the mounting plate (1), and a coaxial limiting groove (13) is provided at the bottom of the pressing plate (10), and the upper end of the central rod (11) is located in the limiting groove (13).

2. The heat pipe powder filling and pressing tool according to claim 1, characterized in that, Wherein: A hydraulic cylinder (2) is provided above the mounting plate (1), and the output end of the hydraulic cylinder (2) is fixedly connected to the mounting plate (1).

3. A heat pipe powder filling and pressing tool according to claim 1, characterized in that Wherein: It further includes a guiding mechanism (3) for guiding the mounting plate (1) capable of moving up and down, the guiding mechanism (3) includes a guiding rod fixed to the upper end of the mounting plate (1), and a sleeve slidably connected to the guiding rod is sleeved on the guiding rod.

4. A heat pipe powder filling and pressing tool according to claim 1, characterized in that, Wherein: The upper end of the spring (12) abuts against the bottom of the mounting plate (1), and the lower end of the spring (12) abuts against the upper end of the pressing plate (10).

5. A heat pipe powder filling and pressing tool according to claim 1, characterized in that Wherein: A through hole is provided through the upper cover of the mounting plate (1), and the round rod (8) and the screw rod (7) pass through the through hole and are movably arranged.

6. The heat pipe powder filling and pressing tool according to claim 1, characterized in that, Wherein: The central rod (11) is located in the limiting groove (13) and is movably connected thereto.

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