Quick-change high-precision aluminum tube cold-drawing die

Abstract

The utility model discloses a high accuracy aluminium pipe cold-drawing die of quick replacement, specifically related to aluminium pipe processing technical field, including base, base one side is equipped with stepper motor, stepper motor output fixedly connected with the screw rod, and the screw rod is rotatably connected with the inside of base, and the outside screw thread of screw rod is connected with the fixed frame, and the top fixed connection of base has the die holder, and the die holder is installed with the connecting mechanism, and the base is installed with the lubricating assembly, and the lubricating assembly includes the protective housing. The utility model discloses through setting lubricating assembly and connecting mechanism, can form annular dynamic atomization spraying to aluminium pipe outside, makes lubricating liquid to cover aluminium pipe contact surface with dynamic mode, forms more even, continuous lubricating film, thereby reduces the friction and wear and tear when cold-drawing, helps to promote processing efficiency and stability, and simultaneously, the second guide groove can provide double positioning when die installation, can reduce the risk that produces deviation when die installation, can make every time installation position keep consistent.

Description

Technical Field

[0001] This utility model relates to the field of aluminum tube processing technology, and more specifically, to a high-precision aluminum tube cold drawing die that can be quickly changed. Background Technology

[0002] Cold drawing is a material processing technique. For metal materials, cold drawing refers to drawing the material at room temperature in order to achieve a certain shape and mechanical properties. Compared with thermoforming, cold-drawn products have advantages such as higher dimensional accuracy and better surface finish.

[0003] The lack of pretreatment of aluminum tubes before cold drawing affects the efficiency and quality of cold drawing.

[0004] A search revealed that Chinese patent CN222919346U discloses a seamless aluminum tube cold drawing device. The device uses a cleaning mechanism at one end of a fixed frame to clean the aluminum tube before cold drawing, preventing impurities from affecting the drawing effect. The device also uses a lubrication mechanism to spray atomized liquid to lubricate the aluminum tube and the die during drawing, thereby improving the subsequent drawing efficiency and quality.

[0005] In actual use, the above-mentioned seamless aluminum tube cold drawing device uses a static spraying method with two nozzles to atomize and spray lubricant onto the outer surface of the aluminum tube. This makes it difficult to ensure that the lubricant evenly covers the contact surface of the aluminum tube, resulting in localized insufficient lubrication. This causes the aluminum tube to bear uneven friction during the cold drawing process, leading to stress concentration and increasing the possibility of aluminum tube breakage. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-precision aluminum tube cold drawing die that can be quickly replaced, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A high-precision aluminum tube cold drawing die that can be quickly changed includes a base, a stepper motor mounted on one side of the base, a lead screw fixedly connected to the output end of the stepper motor, the lead screw being rotatably connected to the inside of the base, a fixing frame threadedly connected to the outside of the lead screw, a die frame fixedly connected to the top of the base, a connecting mechanism mounted on the die frame, and a lubrication assembly mounted on the base. The lubrication assembly includes a protective housing, which is fixedly connected to one side of the mold frame. The bottom of the protective housing is fixedly connected to the top of the base. A connecting housing is fixedly connected to the top of the protective housing. An electric push rod is installed on one side of the connecting housing. A rack is fixedly connected to the output end of the electric push rod. Two gears mesh on one side of the rack. A connecting rod is fixedly connected inside the gears. A spray ring is fixedly connected to the bottom of the connecting rod. A rotating rod is fixedly connected to the bottom of the spray ring. The rotating rod is fixedly connected to the top of the base. Multiple atomizing nozzles are connected to one side of the spray ring. A connecting hose is fixedly connected to one side of the spray ring. A delivery pipe is connected to one side of the connecting hose. A collection trough is opened inside the base. A water outlet pipe is connected to one side of the collection trough.

[0008] By adopting the above technical solution, a ring-shaped dynamic atomization spray of lubricant can be formed on the outside of the aluminum tube during cold drawing, which helps the lubricant to fully contact the outside of the aluminum tube, thereby reducing friction and wear during cold drawing.

[0009] As a further description of the above technical solution: the connecting mechanism includes a hydraulic cylinder, which is fixedly connected to the top of the mold frame. A pressing block is fixedly connected to the output end of the hydraulic cylinder. First guide grooves are provided on both sides of the mold frame. Two second guide grooves are provided on the inner side of the mold frame. Two support blocks are fixedly connected to the inner side of the mold frame. A mold is provided on the inner side of the mold frame. Guide blocks are fixedly connected to both sides of the mold. The guide blocks are slidably connected to the inner side of the second guide groove.

[0010] By adopting the above technical solution, accurate positioning can be provided during mold installation, and the mold can be installed quickly, which helps to improve processing efficiency and accuracy.

[0011] The technical effects and advantages of this utility model are as follows: 1. By setting up a lubrication component, compared with the existing technology, the meshing transmission of the rack and pinion and two gears enables the two spray rings to form a ring-shaped dynamic atomization spray on the outside of the aluminum tube. This allows the lubricant to cover the contact surface of the aluminum tube in a dynamic manner, forming a more uniform and continuous lubricating film. This avoids aluminum tube breakage and local dry friction caused by insufficient local lubrication, thereby reducing friction and wear during cold drawing and helping to improve processing efficiency and stability. 2. By setting up a connecting mechanism, compared with the existing technology, the first guide groove and the second guide groove can provide dual positioning during mold installation, which can reduce the risk of mold offset during installation and ensure that the installation position remains consistent each time. The pressing down of the pressing block can limit the installation of the mold, so that the mold can be installed quickly without complicated adjustments, thereby improving processing accuracy and processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the base of this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the protective shell of this utility model.

[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting shell of this utility model.

[0016] Figure 5 This is a partial structural diagram of the spray ring connection of this utility model.

[0017] Figure 6 This is a schematic diagram of the mold frame structure of this utility model.

[0018] Figure 7 This is a schematic cross-sectional view of the mold frame structure of this utility model.

[0019] The attached diagram is labeled as follows: 1. Base; 2. Stepper motor; 3. Lead screw; 4. Fixing frame; 5. Mold frame; 6. Protective housing; 7. Connecting housing; 8. Electric push rod; 9. Rack; 10. Gear; 11. Connecting rod; 12. Spray ring; 13. Atomizing nozzle; 14. Connecting hose; 15. Delivery pipe; 16. Collection tank; 17. Water outlet pipe; 18. Hydraulic cylinder; 19. Pressing block; 20. First guide groove; 21. Second guide groove; 22. Mold; 23. Guide block; 24. Support block; 25. Rotating rod. Detailed Implementation

[0020] 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.

[0021] The embodiments disclosed in this application are as follows: Figure 1-7 The high-precision aluminum tube cold drawing mold shown includes a base 1, a stepper motor 2 installed on one side of the base 1, a lead screw 3 fixedly connected to the output end of the stepper motor 2, the lead screw 3 being rotatably connected to the inside of the base 1, a fixing bracket 4 threadedly connected to the outside of the lead screw 3, a mold frame 5 fixedly connected to the top of the base 1, a connecting mechanism installed on the mold frame 5, and a lubrication component installed on the base 1. The lubrication assembly includes a protective housing 6, which is fixedly connected to one side of the mold frame 5. The bottom of the protective housing 6 is fixedly connected to the top of the base 1. A connecting housing 7 is fixedly connected to the top of the protective housing 6. An electric push rod 8 is installed on one side of the connecting housing 7. A rack 9 is fixedly connected to the output end of the electric push rod 8. Two gears 10 mesh on one side of the rack 9. A connecting rod 11 is fixedly connected inside the gears 10. A spray ring 12 is fixedly connected to the bottom of the connecting rod 11. A rotating rod 25 is fixedly connected to the bottom of the spray ring 12. The rotating rod 25 is fixedly connected to the top of the base 1. Multiple atomizing nozzles 13 are connected to one side of the spray ring 12. A connecting hose is fixedly connected to one side of the spray ring 12. 14. A conveying pipe 15 is connected to one side of the connecting hose 14. A collection tank 16 is opened inside the base 1. A water outlet pipe 17 is connected to one side of the collection tank 16. The electric push rod 8 pushes the rack 9 to move back and forth, so that the rack 9 can mesh and drive the two gears 10 to reciprocate. This allows the gears 10 to drive the spray ring 12 to deflect through the connecting rod 11. By using the staggered spray rings 12, multiple atomizing nozzles 13 can atomize and spray the lubricant on the outside of the aluminum tube, so that the lubricant covers the contact surface of the aluminum tube in a dynamic manner, forming a more uniform and continuous lubricating film. This reduces friction and wear during cold drawing and helps to improve processing efficiency and stability.

[0022] Reference Figure 6 and 7 As shown, the connecting mechanism includes a hydraulic cylinder 18, which is fixedly connected to the top of the mold frame 5. A pressing block 19 is fixedly connected to the output end of the hydraulic cylinder 18. First guide grooves 20 are provided on both sides of the mold frame 5, and two second guide grooves 21 are provided on the inner side of the mold frame 5. Two support blocks 24 are fixedly connected to the inner side of the mold frame 5. A mold 22 is provided on the inner side of the mold frame 5. Guide blocks 23 are fixedly connected to both sides of the mold 22. The guide blocks 23 are slidably connected to the inner side of the second guide grooves 21. The first guide grooves 20 and the second guide grooves 21 can be used to effectively position the mold 22 before installation, so that different molds 22 can be accurately positioned when being replaced, ensuring that the installation position remains consistent each time. The pressing block 19 can limit the mold 22, allowing the mold 22 to be quickly installed or separated from the mold frame 5, which helps to improve processing efficiency.

[0023] Working principle of this utility model: This utility model is designed with a quick-change, high-precision aluminum tube cold drawing die, the specific structure of which is shown in the attached instruction manual. Figure 1-7As shown, in this technical solution, through the cooperation between various structures, when the aluminum tube needs to be cold-drawn, the aluminum tube passes through the protective shell 6 and the mold 22, and is placed on the mold 22. The mold 22 limits and fixes the aluminum tube. Then, the lubricating fluid is delivered to the delivery pipe 15 through an external pressurizing device. The delivery pipe 15 can deliver the lubricating fluid to the connecting hose 14, so that the two connecting hoses 14 can split the lubricating fluid into the two spray rings 12, so that multiple atomizing nozzles 13 can atomize and spray the lubricating fluid onto the surface of the aluminum tube through the spray rings 12. At the same time as atomizing spraying, the electric push rod 8 is activated, and the electric push rod 8 pushes the aluminum tube. The moving rack 9 moves back and forth, so that the rack 9 can mesh and drive the two gears 10 to rotate. The connecting rod 11 is fixedly connected to the gears 10 and the spray ring 12 respectively, so that the gears 10 can drive the spray ring 12 to swing back and forth through the connecting rod 11. The spray ring 12 is rotated and supported by the top of the base 1 through the rotating rod 25, so that the two spray rings 12 can alternately spray lubricating liquid atomized onto the outer surface of the aluminum tube. Then the stepper motor 2 is started, and the stepper motor 2 drives the lead screw 3 to rotate, so that the lead screw 3 can drive the fixed frame 4 to move. The fixed frame 4 can pull the aluminum tube through the mold 22, thereby realizing the cold drawing of the aluminum tube. When mold 22 needs to be replaced, hydraulic cylinder 18 is activated, which drives the lower pressing block 19 to move upward, and then mold 22 is lifted upward. Guide block 23 is slidably connected to the inner side of second guide groove 21, so that mold 22 can move upward. When guide block 23 moves to first guide groove 20, first guide groove 20 is pulled out. Then guide blocks 23 on both sides of the replacement mold 22 are aligned with first guide groove 20, so that the replacement first guide groove 20 can be placed on mold frame 5. Two support blocks 24 can provide support at the bottom of mold 22. Hydraulic cylinder 18 is activated, so that lower pressing block 19 can press down on the top of mold 22, thereby limiting the position of mold 22.

[0024] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change high-precision aluminum tube cold drawing die, including a base (1), characterized in that: A stepper motor (2) is installed on one side of the base (1). A lead screw (3) is fixedly connected to the output end of the stepper motor (2). The lead screw (3) is rotatably connected to the inside of the base (1). A fixing frame (4) is threadedly connected to the outside of the lead screw (3). A mold frame (5) is fixedly connected to the top of the base (1). A connecting mechanism is installed on the mold frame (5). A lubrication component is installed on the base (1). The lubrication assembly includes a protective housing (6), which is fixedly connected to one side of the mold frame (5). The bottom end of the protective housing (6) is fixedly connected to the top end of the base (1). A connecting housing (7) is fixedly connected to the top end of the protective housing (6). An electric push rod (8) is installed on one side of the connecting housing (7). A rack (9) is fixedly connected to the output end of the electric push rod (8).

2. The high-precision aluminum tube cold drawing die with quick replacement as described in claim 1, characterized in that: Two gears (10) mesh on one side of the rack (9), and a connecting rod (11) is fixedly connected inside the gear (10). A spray ring (12) is fixedly connected to the bottom end of the connecting rod (11).

3. The high-precision aluminum tube cold drawing die with quick replacement as described in claim 1, characterized in that: The bottom end of the spray ring (12) is fixedly connected to a rotating rod (25), the rotating rod (25) is fixedly connected to the top end of the base (1), a plurality of atomizing nozzles (13) are connected to one side of the spray ring (12), a connecting hose (14) is fixedly connected to one side of the spray ring (12), and a delivery pipe (15) is connected to one side of the connecting hose (14).

4. The high-precision aluminum tube cold drawing die with quick replacement as described in claim 1, characterized in that: The base (1) has a collection trough (16) inside, and a water outlet pipe (17) is connected to one side of the collection trough (16).

5. The high-precision aluminum tube cold drawing die with quick replacement as described in claim 1, characterized in that: The connecting mechanism includes a hydraulic cylinder (18), which is fixedly connected to the top of the mold frame (5), and a lower pressure block (19) is fixedly connected to the output end of the hydraulic cylinder (18).

6. The high-precision aluminum tube cold drawing die with quick replacement according to claim 1, characterized in that: The mold frame (5) has a first guide groove (20) on both sides, and two second guide grooves (21) on the inner side of the mold frame (5). Two support blocks (24) are fixedly connected to the inner side of the mold frame (5).

7. The high-precision aluminum tube cold drawing die with quick replacement according to claim 1, characterized in that: The mold frame (5) is provided with a mold (22) on the inner side. Guide blocks (23) are fixedly connected to both sides of the mold (22). The guide blocks (23) are slidably connected to the inner side of the second guide groove (21).

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