A tube pressing device

Abstract

The utility model relates to heat pipe processing technical field discloses a kind of pipe pressing device, including support, pressing mechanism and cutting mechanism installed on support, the support includes sequentially connected base, side plate, upper cover plate from bottom to top, the pressing mechanism includes the connecting block of lifting arrangement, and the connecting block is provided with movable component, closing component and extruding component between base. Movable component, closing component, extruding component military adopt centrosymmetry design, and by the cooperation between three components, utilize closing fixed block extrusion four closing modules to be synchronous to center and be tightened, the port of copper pipe is compressed to airtight state, and the stress deviation of copper pipe is eliminated, the copper pipe orifice after compression has no wrinkle, heat pipe internal gas has no leakage, when heat pipe secondary exhaust seal, reply reduces the invalid end length of copper pipe compression port, solve the problem of space occupation due to invalid end too long.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe processing technology, and in particular to the field of heat pipe exhaust sealing, specifically a pipe pressing device. Background Technology

[0002] A heat pipe is a highly efficient heat transfer element widely used in electronic device heat dissipation (such as CPUs and graphics cards), spacecraft temperature control, and industrial waste heat recovery. Its core principle is to seal a working fluid (such as water or ammonia) inside a vacuum tube shell, utilizing an evaporation-condensation cycle to achieve rapid heat transfer.

[0003] The vent seal of a heat pipe directly determines the vacuum level and working fluid purity inside the heat pipe, thus affecting its heat transfer performance and lifespan.

[0004] Traditional heat pipe pressing devices result in uneven clamping of the copper tube during heat pipe fabrication, leading to insufficient heat pipe sealing and allowing residual gas to seep into the heat pipe, affecting the vacuum level. Furthermore, when the heat pipe is cut after compression and sealing, the ineffective end at the front of the sealed position is too long, occupying storage and usage space. Therefore, we need to propose a heat pipe pressing device. Utility Model Content

[0005] The purpose of this invention is to provide a compression device in which the moving parts, the closing parts, and the extrusion parts are designed with central symmetry. Through the cooperation of the three parts, the closing fixing block is used to compress the four closing modules synchronously towards the center, compressing the end of the copper tube to a sealed state and eliminating the stress deviation of the copper tube. The compressed copper tube end is wrinkle-free and there is no gas leakage inside the heat pipe, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tube pressing device, including a bracket, a pressing mechanism and a cutting mechanism mounted on the bracket, the bracket including a base, a side plate and a top cover plate connected sequentially from bottom to top, the pressing mechanism including a connecting block that is raised and lowered, a movable part, a closing part for clamping the heat pipe and an extrusion part for driving the closing part to move are provided between the connecting block and the base, the closing part is installed between the movable part and the extrusion part, and the movable part, the closing part and the extrusion part are all centrally symmetrically arranged.

[0007] Preferably, a guide component is also provided between the connecting block and the base. The guide component includes an upper guide plate connected to the lower end of the connecting block and a lower guide plate connected to the base. A sliding groove is provided on the inner wall of the side plate. Guide rails are installed on the sides of the upper guide plate and the lower guide plate. The guide rails are slidably installed inside the sliding groove.

[0008] Preferably, the movable component includes an upper movable guide plate one, an upper movable guide plate two, and an upper movable guide plate three fixed on the upper guide plate, and the extrusion component includes a closing fixing block one fixed on the upper guide plate.

[0009] Preferably, the closing component includes an upper closing module one that is slidably mounted on the upper movable guide plate one, and an upper closing module two that is slidably mounted between the upper movable guide plate two and the closing fixing block one.

[0010] Preferably, the movable component further includes a lower movable guide plate one, a lower movable guide plate two, and a lower movable guide plate three fixed on the lower guide plate, and the extrusion component further includes a closing fixing block two fixed on the lower guide plate.

[0011] Preferably, the closing component further includes a lower closing module one slidably mounted on the lower movable guide plate one, and a lower closing module two slidably mounted between the lower movable guide plate two and the closing fixing block two.

[0012] Preferably, the cutting mechanism includes a cylinder mounted on the upper cover plate, one end of the piston rod of the cylinder is connected to a cutter for cutting the heat pipe, and a positioning block that fits against the side of the cutter is installed on the inner wall of the side plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The movable part, the closing part, and the extrusion part of this utility model adopt a centrally symmetrical design. Through the cooperation of the three parts, the closing fixing block is used to extrude the four closing modules to tighten synchronously towards the center, compressing the end of the copper tube to a sealed state and eliminating the stress deviation of the copper tube. The compressed copper tube end is wrinkle-free and there is no gas leakage inside the heat pipe.

[0015] 2. In the secondary exhaust sealing of the heat pipe, this utility model significantly reduces the length of the ineffective end of the copper pipe compression port, thus solving the problem of space occupation caused by the excessive length of the ineffective end. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the back structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the movable part and the closing part of this utility model;

[0020] Figure 5 This is an exploded view of the movable part of this utility model.

[0021] In the diagram: 1. Base; 2. Side plate; 3. Top cover plate; 4. Hydraulic cylinder; 5. Pneumatic cylinder; 6. Positioning block; 7. Cutting blade; 8. Moving parts; 81. Upper movable guide plate one; 82. Upper movable guide plate two; 83. Upper movable guide plate three; 84. Lower movable guide plate one; 85. Lower movable guide plate two; 86. Lower movable guide plate three; 9. Closing parts; 91. Upper closing module one; 92. Upper closing module two; 93. Lower closing module one; 94. Lower closing module two; 10. Connecting block; 11. Upper guide plate; 12. Lower guide plate; 13. Guide rail; 14. Closing fixing block one; 15. Closing fixing block two; 16. Spring; 17. Limit screw. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a tube pressing device, including a bracket, a pressing mechanism and a cutting mechanism mounted on the bracket. The pressing mechanism is used to clamp the copper tube and compress the opening of the copper tube to a sealed state. After the copper tube is compressed, the cutting mechanism cuts off the front end of the compressed part of the copper tube.

[0024] The support includes a base 1, a side plate 2, and an upper cover plate 3 connected sequentially from bottom to top. The pressing mechanism includes a connecting block 10 that is lifted and lowered. A hydraulic cylinder 4 is installed on the upper cover plate 3, and the output end of the hydraulic cylinder 4 is connected to the connecting block 10.

[0025] A movable component 8, a closing component 9 for clamping the heat pipe, and a pressing component for driving the closing component 9 to move are provided between the connecting block 10 and the base 1. The closing component 9 is installed between the movable component 8 and the pressing component. The movable component 8, the closing component 9, and the pressing component are all arranged in a centrally symmetrical manner.

[0026] A guide component is also provided between the connecting block 10 and the base 1. The movable component 8 and the pressing component are both fixed on the guide component. The guide component includes an upper guide plate 11 connected to the lower end of the connecting block 10 and a lower guide plate 12 connected to the base 1. The upper guide plate 11 and the lower guide plate 12 are aligned. A sliding groove is provided on the inner wall of the side plate 2. Guide rails 13 are installed on the sides of the upper guide plate 11 and the lower guide plate 12. The guide rails 13 are slidably installed inside the sliding groove. Through the cooperation of the guide rails 13 and the sliding groove, the movable component 8 and the guide component can be stably raised and lowered.

[0027] like Figure 4 As shown, the movable component 8 includes an upper movable guide plate 11, an upper movable guide plate 2, and an upper movable guide plate 3, all fixed on the upper guide plate 11. The extrusion component includes a closing fixing block 14 fixed on the upper guide plate 11.

[0028] The closing component 9 includes an upper closing module 91 that is slidably mounted on the upper movable guide plate 81, and an upper closing module 92 that is slidably mounted between the upper movable guide plate 82 and the closing fixing block 14. Specifically, the upper closing module 92 is slidably mounted on the upper movable guide plate 82.

[0029] The movable component 8 also includes a lower movable guide plate 1 84, a lower movable guide plate 2 85, and a lower movable guide plate 3 86 fixed on the lower guide plate 12, and the extrusion component also includes a closing fixing block 2 15 fixed on the lower guide plate 12.

[0030] The closing component 9 also includes a lower closing module 93 slidably mounted on the lower movable guide plate 84 and a lower closing module 94 slidably mounted between the lower movable guide plate 85 and the closing fixing block 15.

[0031] It is worth noting that the upper movable guide plate 1 81, the upper movable guide plate 2 82, the lower movable guide plate 1 84, and the lower movable guide plate 2 85 are respectively equipped with limiting screws 17 to limit the upper closing module 1 91, the upper closing module 2 92, the lower closing module 1 93, and the lower closing module 2 94.

[0032] The limiting screw 17 on the upper movable guide plate 1 81 limits the upper closing module 1 91, the limiting screw 17 on the upper movable guide plate 2 82 limits the upper closing module 2 92, the limiting screw 17 on the lower movable guide plate 1 84 limits the lower closing module 1 93, and the limiting screw 17 on the lower movable guide plate 2 85 limits the lower closing module 2 94.

[0033] Furthermore, springs 16 are connected between the upper movable guide plate 1 81 and the upper closing module 1 91, between the upper movable guide plate 3 83 and the upper closing module 2 92, between the lower movable guide plate 1 84 and the lower closing module 1 93, and between the lower movable guide plate 3 86 and the lower closing module 2 94.

[0034] The cutting mechanism includes a cylinder 5 mounted on the upper cover plate 3. One end of the piston rod of the cylinder 5 is connected to a cutter 7 for cutting the heat pipe. A positioning block 6 that fits against the side of the cutter 7 is mounted on the inner wall of the side plate 2.

[0035] In use, the structure of the closing component 9 (upper closing module 1 91, upper closing module 2 92, lower closing module 1 93, lower closing module 2 94) opens outward to the position of the limit screw 17 under the action of the spring 16. The heat pipe (copper pipe) is placed in the center of the closing component 9 by the robot arm. First, the hydraulic cylinder 4 is run to drive the connecting block 10 to move down. The connecting block 10 drives the upper movable guide plate 1 81, upper movable guide plate 2 82, upper movable guide plate 3 83 and closing fixing block 1 14 in the movable component 8 to move down. The closing fixing block 1 14 pushes the lower closing module 1 93 to move. The lower closing module 1 93 squeezes the lower closing module 2 94 to move. The closing fixing block 2 15 pushes the upper closing module 1 91 to move. The upper closing module 1 91 squeezes the upper closing module 2 92 to move until the copper pipe opening is compressed to a sealed state.

[0036] Then the cutting mechanism is activated, and cylinder 5 drives the cutter 7 to move down, using the cutter 7 to cut off the compressed front end of the copper tube.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe clamping device, characterized in that: The device includes a support frame, a pressing mechanism mounted on the support frame, and a cutting mechanism. The support frame includes a base (1), a side plate (2), and a top cover plate (3) connected sequentially from bottom to top. The pressing mechanism includes a connecting block (10) that is raised and lowered. Between the connecting block (10) and the base (1), there is a movable part (8), a closing part (9) for clamping the heat pipe, and an extrusion part for driving the closing part (9) to move. The closing part (9) is installed between the movable part (8) and the extrusion part. The movable part (8), the closing part (9), and the extrusion part are all arranged in a centrally symmetrical manner.

2. The pipe clamping device according to claim 1, characterized in that: A guide component is also provided between the connecting block (10) and the base (1). The guide component includes an upper guide plate (11) connected to the lower end of the connecting block (10) and a lower guide plate (12) connected to the base (1). A sliding groove is provided on the inner wall of the side plate (2). Guide rails (13) are installed on the sides of the upper guide plate (11) and the lower guide plate (12). The guide rails (13) are slidably installed inside the sliding groove.

3. The pipe clamping device according to claim 1, characterized in that: The movable component (8) includes an upper movable guide plate one (81), an upper movable guide plate two (82), and an upper movable guide plate three (83) fixed on the upper guide plate (11), and the extrusion component includes a closing fixing block one (14) fixed on the upper guide plate (11).

4. A pipe clamping device according to claim 3, characterized in that: The closing component (9) includes an upper closing module one (91) that is slidably mounted on an upper movable guide plate one (81) and an upper closing module two (92) that is slidably mounted between an upper movable guide plate two (82) and a closing fixing block one (14).

5. A pipe clamping device according to claim 1, characterized in that: The movable component (8) also includes a lower movable guide plate one (84), a lower movable guide plate two (85), and a lower movable guide plate three (86) fixed on the lower guide plate (12), and the extrusion component also includes a closing fixing block two (15) fixed on the lower guide plate (12).

6. A pipe-pressing device according to claim 5, characterized in that: The closing component (9) further includes a lower closing module (93) slidably mounted on the lower movable guide plate (84) and a lower closing module (94) slidably mounted between the lower movable guide plate (85) and the closing fixing block (15).

7. A pipe clamping device according to claim 1, characterized in that: The cutting mechanism includes a cylinder (5) mounted on the upper cover plate (3), one end of the piston rod of the cylinder (5) is connected to a cutter (7) for cutting the heat pipe, and a positioning block (6) that fits against the side of the cutter (7) is installed on the inner wall of the side plate (2).

Images