A mold fixture for manufacturing flat ends of heat pipes

Abstract

This utility model discloses a mold fixture for manufacturing flat-head heat pipes, including a base. Four guide pillars are fixedly connected to the top of the base, and a top plate is fixedly connected to the top of the four guide pillars. A hydraulic rod is fixedly connected to the top plate, and a lifting plate is fixedly connected to the bottom of the hydraulic rod. A stamping mold fixture is fixedly connected to the bottom of the lifting plate, and a stamping forming groove is formed at the bottom of the stamping mold fixture. A heat pipe body is placed on the base. Two second rack plates are provided on both sides of the heat pipe body. A moving mechanism is provided between each pair of second rack plates and the lifting plate, and a clamping mechanism is provided on each second rack plate. This utility model utilizes a gear and rack transmission mechanism to synchronously link the downward movement of the stamping mold fixture and the clamping action of the clamping mechanism through the same hydraulic power source. This eliminates the need for operators to perform separate clamping and stamping steps, simplifying the process and significantly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe manufacturing technology, and in particular to a mold fixture for manufacturing flat-head heat pipes. Background Technology

[0002] In the field of heat dissipation for electronic devices, heat pipes are widely used due to their high thermal conductivity. In the current heat pipe flat-end manufacturing process, traditional stamping equipment mainly uses simple molds to extrude and form the ends of the heat pipe.

[0003] In the process of processing heat pipes, existing molds often use an independent drive mode for the power transmission system, making it difficult to synchronize the clamping and stamping actions. Operators need to perform clamping and stamping operations step by step, which not only increases the complexity of the process but also significantly reduces production efficiency. To solve the above problems, this application proposes a mold fixture for manufacturing flat ends of heat pipes. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mold fixture for manufacturing flat-head heat pipes. This device utilizes a gear and rack transmission mechanism to synchronize the downward movement of the stamping mold fixture with the clamping action of the clamping mechanism through the same hydraulic power source. This eliminates the need for operators to perform step-by-step clamping and stamping, simplifies the process flow, and significantly improves production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mold fixture for manufacturing a flat-head heat pipe includes a base. Four guide pillars are fixedly connected to the top of the base. A top plate is fixedly connected to the top of the four guide pillars. A hydraulic rod is fixedly connected to the top plate. A lifting plate is fixedly connected to the bottom of the hydraulic rod. The four guide pillars all pass through the lifting plate and are slidably connected to it. A stamping mold fixture is fixedly connected to the bottom of the lifting plate. A stamping forming groove is formed at the bottom of the stamping mold fixture. A heat pipe body is placed on the base. Two second rack plates are provided on both sides of the heat pipe body. A moving mechanism is provided between each pair of second rack plates and the lifting plate. A clamping mechanism is provided on each second rack plate. The clamping mechanism includes a sliding cavity formed within the second rack plate. A limiting block is slidably connected to the sliding cavity. A moving rod is fixedly connected to the side wall of the limiting block. The moving rod passes through the second rack plate and is slidably connected to it. A clamping plate is fixedly connected to the end of the moving rod away from the second rack plate. A spring is fixedly connected to the side wall of the limiting block and the inner wall of the sliding cavity.

[0007] Preferably, the moving mechanism includes a first rack plate fixedly connected to the bottom of the lifting plate, the first rack plate meshing with a first gear, a rotating rod fixedly connected to the first gear on the same axis, upright plates rotatably connected to both ends of the rotating rod, the bottoms of the two upright plates fixedly connected to a base, two second gears fixedly connected to the outer wall of the rotating rod, the two second gears meshing with their corresponding second rack plates, connecting rods fixedly connected to the bottoms of the two second rack plates, a sliding block fixedly connected to the bottoms of the two connecting rods, a sliding groove provided on the top of the base, two sliding rods fixedly connected to the inner wall of the sliding groove, the two sliding rods passing through the sliding block and slidably connected to it.

[0008] Preferably, the inner edge of the stamping forming groove is arc-shaped, and the top of the groove opening is parallel.

[0009] Preferably, the first rack plate has a plurality of first teeth at the end near the first gear, and the second rack plate has a plurality of second teeth at the end near the second gear, and the first gear and the second gear are configured with the same specifications.

[0010] Preferably, the clamps are arc-shaped, and a protective layer is provided at the opposite ends of the two clamps, the protective layer being made of rubber.

[0011] Preferably, the limiting block is a cube, the inner wall cross-section of the sliding cavity matches the limiting block, and the spring is located inside the sliding cavity.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. When the lifting plate is driven to move down by the hydraulic rod, the first rack plate, the gear set and the second rack plate are linked to move the two clamping plates synchronously relative to each other. With the elastic buffer structure of the spring, the shape of the heat pipe can be clamped and fixed to ensure that the heat pipe is stable and does not shift, which significantly improves the dimensional accuracy and surface quality during processing.

[0014] 2. By utilizing a gear and rack transmission mechanism, the downward movement of the stamping die fixture and the clamping action of the clamping mechanism are synchronized through the same hydraulic power source. This eliminates the need for operators to perform clamping and stamping in separate steps, simplifies the process flow, significantly improves production efficiency, and enables automated continuous operation.

[0015] In summary, this device utilizes a gear and rack transmission mechanism to synchronize the downward movement of the stamping die fixture with the clamping action of the clamping mechanism through the same hydraulic power source. This eliminates the need for operators to perform clamping and stamping steps separately, simplifying the process and significantly improving production efficiency. Attached Figure Description

[0016] Figure 1This is a front view structural diagram of a mold fixture for manufacturing flat-head heat pipes according to the present invention.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a mold fixture for manufacturing flat-head heat pipes according to this utility model.

[0018] Figure 3 This is a partial structural diagram of a mold fixture for manufacturing a flat-head heat pipe according to the present invention.

[0019] Figure 4 This is a schematic diagram showing the product before and after processing in a mold fixture for manufacturing a flat-head heat pipe according to this utility model.

[0020] In the diagram: 1. Base, 2. Guide column, 3. Top plate, 4. Hydraulic rod, 5. Lifting plate, 6. Stamping die fixture, 7. Heat pipe body, 8. Stamping forming groove, 9. First rack plate, 10. First gear, 11. Rotating rod, 12. Vertical plate, 13. Second gear, 14. Second rack plate, 15. Connecting rod, 16. Sliding block, 17. Sliding rod, 18. Clamping plate, 19. Moving rod, 20. Limiting block, 21. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A mold fixture for manufacturing a flat-head heat pipe includes a base 1. Four guide pillars 2 are fixedly connected to the top of the base 1. A top plate 3 is fixedly connected to the top of the four guide pillars 2. The four guide pillars 2 not only connect the base 1 and the top plate 3, but also guide the subsequent movement of the lifting plate 5. A hydraulic rod 4 is fixedly connected to the top plate 3. The bottom of the hydraulic rod 4 is fixedly connected to the lifting plate 5. The four guide pillars 2 all pass through the lifting plate 5 and are slidably connected to it. A stamping mold fixture 6 is fixedly connected to the bottom of the lifting plate 5. A stamping forming groove 8 is opened at the bottom of the stamping mold fixture 6. The inner edge of the stamping forming groove 8 is arc-shaped, and the top of the groove opening is parallel. This structural design facilitates the stamping and shaping of the heat pipe body 7.

[0023] A heat pipe body 7 is placed on the base 1. Two second rack plates 14 are provided on both sides of the heat pipe body 7. A moving mechanism is provided between each pair of second rack plates 14 and the lifting plate 5. The moving mechanism includes a first rack plate 9 fixedly connected to the bottom of the lifting plate 5. The first rack plate 9 has multiple first teeth at its end near the first gear 10, and the first rack plate 9 meshes with the first gear 10. A rotating rod 11 is passed through the first gear 10 and fixedly connected to it on the same axis. Vertical plates 12 are rotatably connected to both ends of the rotating rod 11. The bottoms of both vertical plates 12 are fixedly connected to the base 1. Two second gears 13 are fixedly connected to the outer wall of the rotating rod 11. The first gear 10 and the second gear 13... With the same specifications, the two second gears 13 mesh with their corresponding second rack plates 14. The second rack plate 14 has multiple second teeth at one end near the second gear 13. The bottom of each of the two second rack plates 14 is fixedly connected to a connecting rod 15. The first rack plate 9 is located between the two second rack plates 14 and will not interfere with each other. The bottom of the two connecting rods 15 is fixedly connected to a sliding block 16. The top of the base 1 has a sliding groove. The inner wall of the sliding groove is fixedly connected to two sliding rods 17. Both sliding rods 17 pass through the sliding block 16 and are slidably connected to it. The sliding rods 17 and the sliding groove cooperate to guide and limit the sliding block 16, ensuring that the second rack plate 14 moves smoothly.

[0024] Each second rack plate 14 is equipped with a clamping mechanism for clamping and releasing the heat pipe body 7. The clamping mechanism includes a sliding cavity within the second rack plate 14, and a limiting block 20 slidably connected thereto within the sliding cavity. The limiting block 20 slides within the sliding cavity to restrict the movement direction of the moving rod 19. The moving rod 19 is fixedly connected to the side wall of the limiting block 20, and passes through and slidably connects to the second rack plate 14. A clamping plate 18 is fixedly connected to the end of the moving rod 19 away from the second rack plate 14. The clamping plate 18 is arc-shaped. The opposite ends of the clamping plates 18 are provided with protective layers made of rubber. The arc-shaped clamping plates 18 can better fit the outer wall of the heat pipe body 7. The rubber protective layer can prevent damage to the heat pipe body 7 during clamping. The side wall of the limiting block 20 and the inner wall of the sliding cavity are fixedly connected to the spring 21. The spring 21 provides elastic force to clamp the heat pipe body 7. The limiting block 20 is a square block. The cross-section of the inner wall of the sliding cavity cooperates with the limiting block 20 to prevent the limiting block 20 from rotating in the sliding cavity. The cross-section of the inner wall of the sliding cavity cooperates with the limiting block 20. The spring 21 is located in the sliding cavity.

[0025] In this invention, the operator places the heat pipe body 7 onto the base 1, positioning it between two clamping plates 18. The hydraulic rod 4 is activated, causing the lifting plate 5 and the stamping die fixture 6 to move downwards via its output end. As the lifting plate 5 moves downwards, it causes the two first rack plates 9 to move downwards, rotating the first gear 10, the rotating rod 11, and the two second gears 13. This causes the pair of second rack plates 14 on both sides to move relative to each other. The connecting rod 15 and sliding block 16 connected to the second rack plates 14 can slide and guide on the two sliding rods 17, ensuring smooth movement of the second rack plates 14. When the second rack plates 14 on both sides move relative to each other, they cause the moving rods 19 and clamping plates 18 on both sides to move relative to each other until the two clamping plates 18 first abut against the outer wall of the heat pipe body 7. As the lifting plate 5 continues to move downwards, it causes the second rack plates 14 on both sides to move relative to each other, causing the limiting block 20 to slide within the sliding cavity and compressing the spring 21, thereby clamping and fixing the heat pipe body 7. To ensure the stability of the heat pipe body 7 during subsequent processing, when the heat pipe body 7 is clamped, the lifting plate 5 moves down to drive the stamping die fixture 6 to move down, so that the top of the heat pipe body 7 is inserted into the stamping molding groove 8 and the top of the heat pipe body 7 contacts the inner wall of the stamping molding groove 8. The arc surface of the stamping molding groove 8 can make the tops of the heat pipe body 7 move closer together to form a product. In this application, the heat pipe body 7 itself is thin and the stamping force is small. The deformation of the spring 21 can ensure the stability of the heat pipe body 7 during the processing. After processing, the hydraulic rod 4 is activated to drive the lifting plate 5 and the stamping die fixture 6 to move up, so that the two first rack plates 9 move up and drive the second rack plates 14, the moving rod 19, and the clamping plate 18 on both sides to move in opposite directions. The heat pipe body 7 can be released and replaced for the next workpiece of the same specification. In this application, the clamping mechanism has completed clamping before the stamping die fixture contacts the heat pipe, and the clamping force is sufficient to ensure the stability of the heat pipe.

Claims

1. A mold jig for manufacturing a flat end of a heat pipe, comprising a base (1), characterized in that, The base (1) is fixedly connected to four guide columns (2), and the top of the four guide columns (2) is fixedly connected to a top plate (3). A hydraulic rod (4) is fixedly connected to the top plate (3), and a lifting plate (5) is fixedly connected to the bottom of the hydraulic rod (4). The four guide columns (2) all pass through the lifting plate (5) and are slidably connected to it. A stamping die fixture (6) is fixedly connected to the bottom of the lifting plate (5). A stamping molding groove (8) is opened at the bottom of the stamping die fixture (6). A heat pipe body (7) is placed on the base (1). Two second rack plates (14) are provided on both sides of the heat pipe body (7). A moving mechanism is provided between each pair of second rack plates (14) and the lifting plate (5). A clamping mechanism is provided on each second rack plate (14). The clamping mechanism includes a sliding cavity formed in the second rack plate (14), a limiting block (20) slidably connected thereto in the sliding cavity, a moving rod (19) fixedly connected to the side wall of the limiting block (20), the moving rod (19) passing through the second rack plate (14) and slidably connected thereto, a clamping plate (18) fixedly connected to the end of the moving rod (19) away from the second rack plate (14), and a spring (21) fixedly connected to the side wall of the limiting block (20) and the inner wall of the sliding cavity.

2. The flat end molding jig for manufacturing a heat pipe according to claim 1, wherein The moving mechanism includes a first rack plate (9) fixedly connected to the bottom of the lifting plate (5). The first rack plate (9) is meshed with a first gear (10). A rotating rod (11) is fixedly connected to the first gear (10) on the same axis. Both ends of the rotating rod (11) are rotatably connected to a vertical plate (12). The bottoms of the two vertical plates (12) are fixedly connected to the base (1). Two second gears (13) are fixedly connected to the outer wall of the rotating rod (11). The two second gears (13) mesh with their corresponding second rack plates (14). The bottoms of the two second rack plates (14) are fixedly connected to a connecting rod (15). The bottoms of the two connecting rods (15) are fixedly connected to a sliding block (16). A sliding groove is opened at the top of the base (1). Two sliding rods (17) are fixedly connected to the inner wall of the sliding groove. The two sliding rods (17) pass through the sliding block (16) and are slidably connected to it.

3. The flat end molding jig for manufacturing a heat pipe according to claim 1, wherein The inner edge of the stamping forming groove (8) is arc-shaped, and the top of the groove is set in parallel.

4. The flat end molding jig for manufacturing a heat pipe according to claim 2, wherein The first rack plate (9) has multiple first teeth at one end near the first gear (10), and the second rack plate (14) has multiple second teeth at one end near the second gear (13). The first gear (10) and the second gear (13) are configured with the same specifications.

5. The flat end molding jig for manufacturing a heat pipe according to claim 1, wherein The clamping plate (18) is arc-shaped, and a protective layer is provided at the opposite ends of the two clamping plates (18), and the material of the protective layer is rubber.

6. The flat end molding jig for manufacturing a heat pipe according to claim 1, wherein The limiting block (20) is a cube, the inner wall cross-section of the sliding cavity is matched with the limiting block (20), and the spring (21) is located inside the sliding cavity.

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