A stretching device for processing copper capillaries

Abstract

This utility model discloses a stretching device for processing copper capillary tubes, relating to the field of stretching equipment technology. It includes a worktable with two sets of partitions symmetrically arranged at its top. Guide rods and lead screws are rotatably connected to the surfaces of the partitions, and movable plates are connected to the surfaces of the guide rods and lead screws. A lower mold is arranged on one side of the movable plate, and a support is provided at the top of the lower mold. A horizontal plate is symmetrically arranged on one side of the support. In this utility model, by cooperating with a linear guide rail or track on the worktable, the mold is restricted to moving only in a single direction (axial direction), avoiding slider deviation due to lateral forces or mechanical vibration. This ensures that the mold maintains a linear motion trajectory throughout the stretching process. Stable linear motion ensures uniform stress on the copper capillary tube during stretching, avoiding problems such as uneven wall thickness, surface scratches, or breakage caused by mold deviation or vibration, thus improving yield and product quality.

Description

Technical Field

[0001] This utility model relates to the field of stretching equipment technology, and in particular to a stretching device for processing copper capillary tubes. Background Technology

[0002] Copper capillary stretching devices apply tensile force to copper capillaries through specific mechanical structures and power systems, causing plastic deformation and thus changing their dimensional parameters such as length, diameter, and wall thickness. They are widely used in industries such as refrigeration, air conditioning, electronics, and instrumentation to produce copper capillaries of various specifications and sizes to meet the needs of different fields. Currently, copper capillary stretching devices typically use a fixed mold to clamp one end of the copper capillary, while the other end is clamped by a moving mold. A motor drives a lead screw to rotate, causing a moving plate to move the mold and the copper capillary for stretching. However, due to potential lateral forces or mechanical backlashes when the lead screw drives the slider, without guide wheels to limit the movement, the mold may deviate in a non-axial direction, causing the stretching trajectory to deviate from the expected value and affecting processing accuracy. Utility Model Content

[0003] This invention provides a stretching device for processing copper capillary tubes, which solves the problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A stretching device for processing copper capillary tubes includes a worktable. Two sets of partitions are symmetrically arranged at the top of the worktable, and guide rods and lead screws are rotatably connected to the surfaces of the partitions respectively. Moving plates are connected to the surfaces of the guide rods and lead screws respectively. A lower mold is arranged on one side of the moving plate, and a support is arranged at the top of the lower mold. A horizontal plate is symmetrically arranged on one side of the support.

[0006] The bottom end of the horizontal plate is connected to a connecting pipe, and a support rod is sleeved inside the connecting pipe, and a guide wheel is connected to the bottom end of the support rod.

[0007] As a further description of the above technical solution:

[0008] The surface of the connecting pipe is threaded with a first annular plate, and the inner wall of the first annular plate is provided with a first sliding groove. A first slider is slidably connected inside the first sliding groove, and one side of the first slider is connected to an installation rod connected to the top of the support rod. The surface of the connecting pipe is symmetrically provided with moving grooves for moving the installation rod.

[0009] As a further description of the above technical solution:

[0010] A cylinder is installed at the top of the bracket, and the output end of the cylinder passes through the bracket and is connected to the upper mold.

[0011] As a further description of the above technical solution:

[0012] A guide rod is provided on one side of the movable plate, and a second annular plate is movably sleeved on the surface of the guide rod. A rack is connected to the inner wall of the second annular plate, and a gear is connected to the surface of the rack. A threaded rod is connected to the surface of the gear, which is threadedly connected to the movable plate and the lower mold.

[0013] As a further description of the above technical solution:

[0014] The second annular plate has a second groove at its inner bottom end, and a second slider is slidably connected inside the second groove and is rotatably connected to the bottom end of the threaded rod.

[0015] As a further description of the above technical solution:

[0016] A fixed mold is installed on one side of the top of the workbench.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] In this invention, the guide wheel cooperates with the linear guide rail or track on the worktable to restrict the mold to move only in a single direction (axial direction), avoiding the slide displacement caused by lateral force or mechanical vibration. This ensures that the mold always maintains a linear motion trajectory during the stretching process, and the stable linear motion ensures that the copper capillary is subjected to uniform force during the stretching process, avoiding problems such as uneven wall thickness, surface scratches or breakage caused by mold displacement or vibration, thereby improving the yield and product quality. Attached Figure Description

[0019] Figure 1 A schematic diagram of a stretching device for processing copper capillaries;

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the internal structure of the first annular plate in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the second annular plate in this utility model.

[0023] Legend:

[0024] 1. Workbench; 2. Partition; 3. Guide rod; 4. Lead screw; 5. Moving plate; 6. Lower mold; 7. Support; 8. Horizontal plate; 9. Connecting pipe; 10. Support rod; 11. Guide wheel; 12. First annular plate; 13. First slide groove; 14. First slider; 15. Mounting rod; 16. Moving groove; 17. Cylinder; 18. Upper mold; 19. Guide rod; 20. Second annular plate; 21. Rack; 22. Gear; 23. Threaded rod; 24. Second slide groove; 25. Second slider; 26. Fixed mold. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-4 A stretching device for processing copper capillary tubes includes a worktable 1. Two sets of partitions 2 are symmetrically arranged at the top of the worktable 1. Guide rods 3 and lead screws 4 are rotatably connected to the surfaces of the partitions 2, respectively. Moving plates 5 are connected to the surfaces of the guide rods 3 and lead screws 4, respectively. A lower mold 6 is arranged on one side of the moving plate 5, and a support 7 is arranged at the top of the lower mold 6. A horizontal plate 8 is symmetrically arranged on one side of the support 7. A connecting pipe 9 is connected to the bottom of the horizontal plate 8, and a support rod 10 is sleeved inside the connecting pipe 9. A guide wheel 11 is connected to the bottom of the support rod 10. The device clamps one end of the capillary tube through a fixed mold 26 and holds the other end... The upper mold 18 and the lower mold 6 are clamped together. The motor drives the lead screw 4 to work, which in turn moves the moving plate 5 on its surface, causing the upper mold 18, the lower mold 6 and the capillary tube to move and stretch. At the same time, when the lower mold 6 moves, the guide wheel 11 can cooperate with the linear guide rail or track on the worktable 1 to restrict the mold to move in only one direction, avoiding the slide block deviation caused by lateral force or mechanical vibration, thus ensuring that the mold always maintains a linear motion trajectory during the stretching process. The lead screw 4 is driven by a motor, and the top of the worktable 1 can be bolted to install the guide rail or track to allow the guide wheel 11 to move in a limited position.

[0027] Furthermore, the surface of the connecting pipe 9 is threaded with a first annular plate 12, and the inner wall of the first annular plate 12 is provided with a first sliding groove 13. The first sliding groove 13 is slidably connected to a first slider 14, and one side of the first slider 14 is connected to an mounting rod 15 connected to the top of the support rod 10. The surface of the connecting pipe 9 is symmetrically provided with moving grooves 16 for moving the mounting rod 15. This is to facilitate the rotation of the first annular plate 12, which can rotate the mounting rod 15, the support rod 10 and the guide wheel 11 to move, and the guide wheel 11 can be moved to the guide rail or track at the top of the workbench 1.

[0028] Furthermore, a cylinder 17 is installed at the top of the support 7, and the output end of the cylinder 17 passes through the support 7 and is connected to the upper mold 18. This facilitates driving the upper mold 18 to the top of the lower mold 6 via the cylinder 17, and the capillary can be limited by the cooperation between the upper mold 18 and the lower mold 6.

[0029] Furthermore, a guide rod 19 is provided on one side of the movable plate 5, and a second annular plate 20 is movably sleeved on the surface of the guide rod 19. A rack 21 is connected to the inner wall of the second annular plate 20, and a gear 22 is connected to the surface of the rack 21. A threaded rod 23 is connected to the surface of the gear 22 and is threadedly connected to the movable plate 5 and the lower mold 6. By rotating the second annular plate 20, the rack 21 on its inner wall can move on the surface of the gear 22, which can drive the threaded rod 23 to rotate inside the lower mold 6 and the movable plate 5. Since they are threadedly connected, the threaded rod 23 can be removed from the inside of the lower mold 6 to facilitate the replacement of different molds according to capillary tubes of different diameters.

[0030] Furthermore, a second groove 24 is provided at the bottom of the inner side of the second annular plate 20, and a second slider 25 is slidably connected inside the second groove 24 and rotatably connected to the bottom of the threaded rod 23. This facilitates the movement of the second annular plate 20 at the top of the threaded rod 23 through the second groove 24 and the second slider 25.

[0031] Furthermore, a fixed mold 26 is installed on one side of the top of the workbench 1. The fixed mold 26 is fixed to the top of the workbench 1 by bolts or the like. It also has a lower mold 6, an upper mold 18, a bracket 7, and a cylinder 17.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stretching device for processing copper capillary tubes, comprising a worktable (1), characterized in that: The top of the workbench (1) is symmetrically provided with two sets of partitions (2), and the surfaces of the partitions (2) are respectively rotatably connected with guide rods (3) and lead screws (4), and the surfaces of the guide rods (3) and lead screws (4) are respectively connected with moving plates (5). A lower mold (6) is provided on one side of the moving plate (5), and a support (7) is provided at the top of the lower mold (6). A horizontal plate (8) is symmetrically provided on one side of the support (7). The bottom end of the horizontal plate (8) is connected to a connecting pipe (9), and a support rod (10) is sleeved inside the connecting pipe (9), and a guide wheel (11) is connected to the bottom end of the support rod (10).

2. The stretching device for processing copper capillary tubes according to claim 1, characterized in that: The surface of the connecting pipe (9) is threaded with a first annular plate (12), and the inner wall of the first annular plate (12) is provided with a first sliding groove (13). The first sliding groove (13) is slidably connected with a first slider (14), and one side of the first slider (14) is connected with an installation rod (15) connected to the top of the support rod (10). The surface of the connecting pipe (9) is symmetrically provided with moving grooves (16) for moving the installation rod (15).

3. The stretching device for processing copper capillary tubes according to claim 1, characterized in that: A cylinder (17) is installed at the top of the bracket (7), and the output end of the cylinder (17) passes through the bracket (7) and is connected to the upper mold (18).

4. The stretching device for processing copper capillary tubes according to claim 1, characterized in that: A guide rod (19) is provided on one side of the movable plate (5), and a second annular plate (20) is movably sleeved on the surface of the guide rod (19). A rack (21) is connected to the inner wall of the second annular plate (20), and a gear (22) is connected to the surface of the rack (21). A threaded rod (23) is connected to the surface of the gear (22) and is threadedly connected to the movable plate (5) and the lower mold (6).

5. The stretching device for processing copper capillary tubes according to claim 4, characterized in that: The second annular plate (20) has a second groove (24) at its inner bottom end, and the second groove (24) is slidably connected to a second slider (25) which is rotatably connected to the bottom end of the threaded rod (23).

6. The stretching device for processing copper capillary tubes according to claim 1, characterized in that: A fixed mold (26) is installed on one side of the top of the workbench (1).

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