Hot stamping die for locking nut machining
By introducing a hydraulic system and an atomizing nozzle cooling mechanism into the hot stamping die for locking nuts, the problem of prolonged production cycle caused by excessive die temperature was solved, and efficient processing of locking nuts was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU CHANGGHUAI PRECISION HARDWARE CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-19
AI Technical Summary
In the hot stamping process of locking nuts, excessively high mold temperature leads to extended production cycles, and slow natural cooling results in reduced processing efficiency.
Design a hot stamping die that includes a hydraulic cylinder, a heating seat, an atomizing nozzle, and a cooling mechanism. The die is driven to close by a hydraulic system and cooled by water jets from the atomizing nozzle, thus achieving rapid cooling of the die.
The processing efficiency of locking nuts has been improved, and the production cycle has been shortened by rapidly cooling the mold, ensuring continuous production.
Smart Images

Figure CN224254025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical parts manufacturing technology, specifically a hot stamping die for processing locking nuts. Background Technology
[0002] In modern industrial manufacturing, locknuts are a crucial fastener widely used in numerous industries such as machinery, automotive, aerospace, and electronic equipment. Through their special structural design, they effectively prevent loosening under complex operating conditions such as vibration and impact, ensuring the stable operation and safety of mechanical devices.
[0003] Hot stamping, as an advanced metal forming technology, plays an important role in the manufacturing of lock nuts. This process utilizes the good plasticity and low deformation resistance of metal materials at high temperatures. A metal blank heated to a certain temperature is placed into a mold cavity, and pressure is applied by stamping equipment, causing the metal blank to undergo plastic deformation under the action of the mold, thereby obtaining a lock nut of the desired shape and size.
[0004] During the hot stamping process of locking nuts, the mold comes into direct contact with the high-temperature metal blank, absorbing a large amount of heat and causing the mold temperature to rise rapidly. Due to the excessively high mold temperature, frequent shutdowns are required for cooling, which undoubtedly prolongs the production cycle of locking nuts. In the traditional production mode, when the mold temperature reaches a certain level, the workers need to stop the stamping equipment and wait for the mold to cool down naturally. The natural cooling rate is very slow, usually taking several hours or even longer to reduce the mold temperature to a range where it can continue to work, resulting in low processing efficiency.
[0005] Therefore, in order to solve the above problems, the applicant needs to design a hot stamping die for processing locking nuts. Utility Model Content
[0006] The purpose of this utility model is to provide a hot stamping die for processing locking nuts, so as to solve the problems mentioned in the background art above.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a hot stamping die for processing locking nuts, comprising a support frame, and a hydraulic cylinder is provided on the support frame.
[0008] It also includes: a heating seat set on a support frame, and a lower mold set on the heating seat; an installation plate fixedly set on the output end of the hydraulic cylinder; an upper mold set on the installation plate; and the upper mold and the lower mold cooperate to hot press to manufacture locking nuts.
[0009] A cooling mechanism for cooling a mold, comprising an atomizing nozzle disposed on the outside of the lower mold, wherein the water inlet end of the atomizing nozzle is fixedly connected to an extension pipe, and the end of the extension pipe away from the atomizing nozzle is fixedly connected to a water pump, the water inlet end of the water pump is fixedly connected to an outlet pipe, and the end of the outlet pipe away from the water pump is fixedly connected to a water tank.
[0010] Furthermore, the hydraulic cylinder is connected to a circulating oil pipe for supplying oil circulation, and one end of the circulating oil pipe is connected to a buffer chamber. The buffer chamber is connected to a connecting pipe, and the end of the connecting pipe away from the buffer chamber is fixedly connected to a pressure pump.
[0011] With the above structural design, during use, the pressure pump draws oil into the connecting pipe. Under pressure, the oil in the connecting pipe will enter the hydraulic cylinder through the buffer tank and the circulating oil pipe, which will facilitate the start of the hydraulic cylinder, thereby driving the upper mold and the lower mold to close.
[0012] Furthermore, a delivery pipe is fixedly connected to the pressurizing pump, and an oil tank is fixedly connected to the end of the delivery pipe away from the pressurizing pump. A support base is fixedly installed on the bottom surface of the oil tank, and the support base is fixedly connected to the support frame.
[0013] With the above structural design, under the action of the pressurizing pump, the oil in the tank can easily enter the connecting pipeline through the delivery pipeline.
[0014] Furthermore, a hollow sleeve is fixedly installed on the extension pipe, and a support rod is fixedly installed on the hollow sleeve, with the end of the support rod away from the hollow sleeve being fixedly connected to a support base.
[0015] Through the above structural design, the support rods and hollow sleeves facilitate the support of the extension pipe, thereby improving the load-bearing capacity of the extension pipe and enhancing its stability.
[0016] Furthermore, a stabilizing base is fixedly installed below the water pump, and the bottom surface of the stabilizing base is fixedly connected to the top surface of the oil tank.
[0017] The above structural design utilizes a stable base to easily support the water pump, thereby improving the stability and steadiness of the water pump during use.
[0018] Furthermore, a reinforcing base is fixedly installed on the bottom surface of the pressurizing pump, and the reinforcing base is fixedly connected to the oil tank.
[0019] The above structural design utilizes a reinforcing base to easily support the pressure pump, thereby improving the stability and robustness of the pump's mounting bracket during operation.
[0020] Compared with the prior art, the beneficial effects of this utility model are: the hot stamping die for processing locking nuts facilitates the hot pressing of locking nuts using the die, and can cool the die components during processing, thereby improving processing efficiency. The specific details are as follows:
[0021] When using this hot stamping die for processing locking nuts, the material is placed into the lower die and the heating seat and pressure pump are started. Under the action of the pressure pump, the oil in the oil tank can easily enter the connecting pipe through the conveying pipe. Under the pressure, the oil in the connecting pipe will enter the hydraulic cylinder through the buffer tank and the circulating oil pipe, which will facilitate the start of the hydraulic cylinder, thereby driving the upper and lower dies to close, which will facilitate the hot pressing of locking nuts and make the operation convenient.
[0022] When using the hot stamping die for processing locking nuts, the water pump is started when the nut is hot-pressed. The water pump draws clean water from the water tank at a temperature suitable for the locking nut material and enters the water outlet pipe. The clean water in the water outlet pipe is sprayed out from the atomizing nozzle after passing through the extension pipe, which helps to reduce the ambient temperature around the upper and lower dies, thus accelerating the forming of the locking nut and improving processing efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;
[0024] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;
[0025] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;
[0026] Figure 4 This is a three-dimensional structural diagram of the cooling mechanism of this utility model.
[0027] In the diagram: 1. Support frame; 2. Cooling mechanism; 10. Hydraulic cylinder; 11. Mounting plate; 12. Upper mold; 13. Heating seat; 14. Lower mold; 15. Circulating oil pipe; 16. Buffer chamber; 17. Connecting pipe; 18. Pressurization pump; 19. Delivery pipe; 20. Water tank; 21. Water outlet pipe; 22. Water pump; 23. Extension pipe; 24. Atomizing nozzle; 25. Stabilizing seat; 26. Hollow sleeve; 27. Support rod; 180. Reinforcing seat; 190. Oil tank; 191. Support base. Detailed Implementation
[0028] 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.
[0029] like Figures 1-4 As shown, a hot stamping die for processing locking nuts according to this utility model includes a support frame 1, on which a hydraulic cylinder 10 is mounted. It also includes a heating seat 13 mounted on the support frame 1, on which a lower die 14 is mounted. An mounting plate 11 is fixedly mounted on the output end of the hydraulic cylinder 10, and an upper die 12 is mounted on the mounting plate 11. The upper die 12 and the lower die 14 cooperate to hot-press and manufacture locking nuts. A circulating oil pipe 15 for supplying circulating oil is connected to the hydraulic cylinder 10. The system is connected to a buffer chamber 16, and a connecting pipe 17 is connected to the buffer chamber 16. A pressure pump 18 is fixedly connected to the end of the connecting pipe 17 away from the buffer chamber 16. A delivery pipe 19 is fixedly connected to the pressure pump 18, and an oil tank 190 is fixedly connected to the end of the delivery pipe 19 away from the pressure pump 18. A support base 191 is fixedly installed on the bottom surface of the oil tank 190, and the support base 191 is fixedly connected to the support frame 1. A reinforcing base 180 is fixedly installed on the bottom surface of the pressure pump 18, and the reinforcing base 180 is fixedly connected to the oil tank 190.
[0030] With the above structural design, when in use, the material is placed into the lower mold 14 and the heating seat 13 and the pressure pump 18 are started. Under the action of the pressure pump 18, the oil in the oil tank 190 can easily enter the connecting pipe 17 through the conveying pipe 19. Under the action of pressure, the oil in the connecting pipe 17 will enter the hydraulic cylinder 10 through the buffer chamber 16 and the circulating oil pipe 15, which will facilitate the start of the hydraulic cylinder 10, thereby driving the upper mold 12 and the lower mold 14 to close, which will facilitate the hot pressing of the locking nut and make the operation convenient.
[0031] A cooling mechanism 2 for cooling the mold includes an atomizing nozzle 24 disposed on the outside of the lower mold 14. The water inlet end of the atomizing nozzle 24 is fixedly connected to an extension pipe 23, and the end of the extension pipe 23 away from the atomizing nozzle 24 is fixedly connected to a water pump 22. The water inlet end of the water pump 22 is fixedly connected to an outlet pipe 21, and the end of the outlet pipe 21 away from the water pump 22 is fixedly connected to a water tank 20. A hollow sleeve 26 is fixedly disposed on the extension pipe 23, and a support rod 27 is fixedly disposed on the hollow sleeve 26. The end of the support rod 27 away from the hollow sleeve 26 is fixedly connected to a support base 191. A stabilizing base 25 is fixedly disposed below the water pump 22, and the bottom surface of the stabilizing base 25 is fixedly connected to the top surface of the oil tank 190.
[0032] With the above structural design, when the nut is hot-pressed, the water pump 22 is started. The water pump 22 draws clean water from the water tank 20 at a temperature suitable for the locking nut material and enters the water outlet pipe 21. The clean water in the water outlet pipe 21 is sprayed out from the atomizing nozzle 24 after passing through the extension pipe 23. This helps to reduce the ambient temperature around the upper mold 12 and the lower mold 14, which will help to accelerate the molding of the locking nut and thus improve the processing efficiency.
[0033] Working principle: When using this hot stamping die for processing locking nuts, the material is placed into the lower die 14 and the heating seat 13 and pressure pump 18 are started. Under the action of the pressure pump 18, the oil in the oil tank 190 can easily enter the connecting pipe 17 through the conveying pipe 19. Under pressure, the oil in the connecting pipe 17 will enter the hydraulic cylinder 10 through the buffer chamber 16 and the circulating oil pipe 15, which will facilitate the start of the hydraulic cylinder 10, thereby driving the upper die 12 and the lower die 14 to close, which will facilitate the hot pressing of the locking nut. When the nut is hot pressed, the water pump 22 is started. The water pump 22 will draw clean water from the water tank 20 that is suitable for the locking nut material and enter the water outlet pipe 21. The clean water in the water outlet pipe 21 will be sprayed out from the atomizing nozzle 24 after passing through the extension pipe 23, which will help reduce the ambient temperature around the upper die 12 and the lower die 14, which will help accelerate the forming of the locking nut, thereby improving the processing efficiency.
[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A hot stamping die for processing locking nuts, comprising a support frame (1), and a hydraulic cylinder (10) is provided on the support frame (1). characterized in that Also includes: A heating seat (13) is set on a support frame (1), and a lower mold (14) is set on the heating seat (13). An installation plate (11) is fixedly set on the output end of the hydraulic cylinder (10). An upper mold (12) is set on the installation plate (11), and the upper mold (12) and the lower mold (14) cooperate to hot press to manufacture locking nuts. A cooling mechanism (2) for cooling the mold, and the cooling mechanism (2) includes an atomizing nozzle (24) disposed on the outside of the lower mold (14). The water inlet end of the atomizing nozzle (24) is fixedly connected to an extension pipe (23), and the end of the extension pipe (23) away from the atomizing nozzle (24) is fixedly connected to a water pump (22). The water inlet end of the water pump (22) is fixedly connected to a water outlet pipe (21), and the end of the water outlet pipe (21) away from the water pump (22) is fixedly connected to a water tank (20).
2. The hot press die for machining of a lock nut according to claim 1, characterized in that: The hydraulic cylinder (10) is connected to a circulating oil pipe (15) for supplying oil circulation, and one end of the circulating oil pipe (15) is connected to a buffer chamber (16). The buffer chamber (16) is connected to a connecting pipe (17), and the end of the connecting pipe (17) away from the buffer chamber (16) is fixedly connected to a pressure pump (18).
3. The hot press die for machining of a lock nut according to claim 2, characterized in that: The pressurizing pump (18) is fixedly connected to a conveying pipe (19), and the end of the conveying pipe (19) away from the pressurizing pump (18) is fixedly connected to an oil tank (190). A support base (191) is fixedly provided on the bottom surface of the oil tank (190), and the support base (191) is fixedly connected to the support frame (1).
4. The hot press die for machining of a lock nut according to claim 3, characterized in that: A hollow sleeve (26) is fixedly installed on the extension pipe (23), and a support rod (27) is fixedly installed on the hollow sleeve (26), with the end of the support rod (27) away from the hollow sleeve (26) being fixedly connected to the support seat (191).
5. The hot press die for machining of a lock nut according to claim 3, characterized in that: A stabilizing base (25) is fixedly installed below the water pump (22), and the bottom surface of the stabilizing base (25) is fixedly connected to the top surface of the oil tank (190).
6. The hot press die for machining of a lock nut according to claim 3, characterized in that: The bottom surface of the pressurizing pump (18) is fixedly provided with a reinforcing base (180), and the reinforcing base (180) is fixedly connected to the oil tank (190).