High-percent-of-pass production method of belleville spring

Abstract

The invention relates to a high-qualified-rate production method of a disc spring, which is applied to the field of disc springs, and comprises the following steps: raw material selection: selecting a round high-temperature-resistant nickel-chromium alloy stainless steel disc spring as a raw material disc of the disc spring, and selecting the diameter of the raw material disc which is more than 5mm greater than the diameter of a disc spring part; and the thickness of the disc is turned, specifically, according to the material, the compression amount and the pressure index of the disc spring, the expected thickness needed for machining the disc spring is calculated, and the error between the expected thickness and the actual thickness is controlled to be positive 0.5-1 mm. The whole belleville spring can meet the requirement of a higher-temperature environment, it is effectively guaranteed that the belleville spring can work stably in the high-temperature environment, the service life is prolonged, the mechanical property is enhanced, the percent of pass of each belleville spring is kept and improved, the problem that the overall characteristic precision of the belleville spring is reduced is avoided, and the production efficiency is improved. And the smoothness of the surface of the belleville spring is guaranteed, and the problem of damage caused by self friction of the belleville spring is solved.

Description

Technical Field

[0001] The invention relates to a disc spring production method, in particular to a disc spring production method with a high qualified rate applied in the disc spring field. Background Art

[0002] Disc springs, abbreviated as disc springs, are a type of truncated cone-shaped compression spring with variable stiffness characteristics that is stamped from steel plates, steel strips or steel forgings. Disc springs are conical discs and can be used individually or in series or in parallel. They are subject to static or dynamic loads acting in the axial direction at the upper inner edge and the lower outer edge. They are deformed after being compressed until they are flattened, storing energy as a live load, which is automatically converted into the additional compression load required for sealing when necessary, to reduce the continuous tightening requirements for gaskets and packings during use.

[0003] At present, disc springs are usually formed by one-time stamping, with low manufacturing dimensional accuracy, large deviations in inner and outer diameter dimensions, thickness dimensions, free height dimensions, and poor uniformity. In addition, disc springs are usually used in combination. In the combined pairing, if the qualified rate of each disc spring is inconsistent, the overall characteristic accuracy of the disc spring assembly may be reduced, and the stability of the disc spring characteristics may be affected. Therefore, a production method with a high qualified rate of disc springs is proposed to improve the above problems. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that in the combination pairing, if the qualified rate of each disc spring is inconsistent, the overall characteristic accuracy of the disc spring assembly may be reduced, and the stability of the disc spring characteristics may be affected.

[0005] In order to solve the above problems, the present invention provides a method for producing a disc spring with a high qualified rate, comprising the following steps: S1. Raw material selection: Use round high-temperature resistant nickel-chromium alloy stainless steel disc springs as the raw material discs of the disc springs, and the diameter of the raw material discs should be larger than the diameter of the disc spring parts by more than 5mm; S2. Turning disc thickness: Calculate the expected thickness required for processing the disc spring according to the material, compression and pressure index of the disc spring, control the error between the expected thickness and the actual thickness within 0.5-1mm, and use a precision lathe to turn the thickness of the raw material disc; S3. Stamping annular rough blank: According to the inner and outer circle size parameters of the disc spring, the estimated size of the inner and outer circles of the stamped disc spring is calculated, and the error between the estimated size of the inner and outer circles and the actual size of the inner and outer circles is controlled to be between positive 0.5-1mm. The disc after turning is stamped by stamping equipment to obtain the disc spring annular rough blank; S4, heat treatment: place the disc spring annular blank in a quenching device for quenching, heat the disc spring annular blank to a temperature 30-50°C above the critical temperature Ac3, keep it warm for 2 hours, place the disc spring annular blank in a water cooling device for cooling, set the cooling temperature to 10-15°C below the critical cooling temperature, cool for 2 hours, and repeat the quenching for at least 3 times; S5. Disc spring stamping: Place the quenched annular blank in the disc spring stamping die, and use the disc spring stamping die to stamp the annular blank into a disc spring. The thickness of the disc spring is between 0.1-0.2mm greater than the actual thickness. The stamping force is not less than twice the load at f=0.75h0, and the duration is 2h. The stamping times are not less than 5 times; S6. First screening: Use a high-precision screening machine to screen the disc springs after stamping, leaving only the disc springs that meet the size and thickness requirements; S7, Surface treatment: Use precision lathe to turn the disc spring after screening, remove burrs and excess size on the disc spring surface, ensure the disc spring surface is smooth, make the inner and outer circle size and thickness of the disc spring meet the requirements, and control the error between 5-10μm; S8. Second screening: Use a high-precision screening machine to screen the disc springs after surface treatment, leaving only those with smooth surface, uniform thickness and size that meet the requirements; S9, cleaning and drying: Place the screened disc spring in an ultrasonic cleaning device for 1-2 hours of cleaning to remove the dirt layer on the surface of the disc spring, and then dry the disc spring in a dryer to obtain a disc spring with a clean surface; S10, coating: Use electroplating technology to apply a protective coating to the surface of the dried disc spring to enhance the aesthetics of the disc spring and form an anti-corrosion and anti-wear layer that is not affected by the external environment; S11. Third screening: The disc springs are inspected for thickness, size and mechanical properties by visual inspection, dimensional measurement and mechanical testing. Disc springs that do not meet the specified standards will be reworked. S12. Packaging: Carefully package the finished disc springs.

[0006] As a further supplement to the present application, the disc spring forming stamping die includes a die base, and a lifting mechanism is fixedly installed at the middle position of one side of the die base, and a stamping cylinder is fixedly installed on the lifting mechanism, the lifting mechanism includes a side frame fixedly installed at the middle position of one side of the die base, and the inner wall of the side frame is rotatably connected to a second threaded rod, and a second forward and reverse motor for driving the second threaded rod to rotate is fixedly installed on the top of the side frame, a lifting seat is screwed on the second threaded rod, and a mounting frame is fixedly installed on one side of the lifting seat, the stamping cylinder is fixedly installed on the mounting frame, guide grooves are opened at both ends of the side frame, and one side of the lifting seat is slidably arranged inside the side frame and the guide groove, guide holes are opened on both sides of the bottom of the mounting frame, and two connecting plates are fixed on one side of the side frame, and guide rods passing through the guide holes are fixed on the bottom of the connecting plates; the above-mentioned lifting mechanism is used to facilitate the adjustment of the height of the stamping cylinder 9, so that it is close to the annular blank, which is convenient for stamping operations.

[0007] As a further supplement to the present application, a stamping storage cylinder is fixedly installed at the middle position of the top of the mold base, and the stamping cylinder is located directly above the stamping storage cylinder, an inlet and outlet are opened on one side of the stamping storage cylinder, and the inner wall of the inlet and outlet is plugged with a support platform, one end of the support platform is fitted to the bottom of the inner wall of the stamping storage cylinder, the disc spring is arranged on the top of the support platform and inside the stamping storage cylinder, and an inlet and outlet assembly is arranged at the bottom of the support platform, the inlet and outlet assembly includes a cavity opened inside the middle position of the mold base, and a first threaded rod is rotatably connected to the inner wall of the cavity, one end of the first threaded rod and the bottom of the second threaded rod are fixed with bevel gears, the two bevel gears are meshed, a through opening is opened at the top of one end of the cavity, and a Z-shaped movable plate passing through the through opening is screwed on the first threaded rod, and the top end of the Z-shaped movable plate is fixedly connected to the bottom end of the support platform; the above-mentioned inlet and outlet assembly is adopted so that the disc spring forming stamping mold 1 has automatic inlet and outlet functions, which is convenient for loading and unloading and improves safety performance.

[0008] As a further supplement to the present application, an arc-shaped guard plate is fixedly installed on one side of the top of the support table, and the inner wall of the guard plate is adapted to the inner wall of the stamping storage tube, the guard plate is fitted to the inner wall of the inlet and outlet, and a clamping and positioning assembly is provided on the stamping storage tube, and the clamping and positioning assembly includes an annular frame fixedly installed on the outer wall of the stamping storage tube, and the inner wall of the annular frame is rotatably connected with equidistantly distributed gear columns through a pin shaft, a first forward and reverse motor for driving the gear column to rotate is fixedly installed on the top of the annular frame, a slide rail is fixedly installed on the bottom of the inner wall of the annular frame, and a gear ring is slidably provided on the inner wall of the slide rail, The inner wall of the gear ring is meshed with the bottom of the outer wall of the gear column, the inner wall of the stamping storage cylinder is provided with guide openings distributed at equal distances, and the inner wall of the guide opening is slidably provided with a rack plate, one side of the rack plate is meshed with the top of the outer wall of the gear column, and one end of the rack plate is fixedly installed with an arc-shaped clamping seat, the inner wall of the stamping storage cylinder is provided with slots distributed at equal distances, and the slots are communicated with the guide openings, the positions of the slots correspond to the positions of the clamping seat, and a protective pad is fixed to one end of the clamping seat; the above-mentioned clamping and positioning assembly can be used to fix the annular blank to ensure stable performance during stamping.

[0009] In summary, after adopting the above structure, the present invention has the following advantages compared with the prior art: 1. In the present invention, high-quality disc spring raw materials are selected, and a protective coating is applied on the surface of the disc spring, so that the entire disc spring can adapt to higher temperature environment requirements, effectively ensuring that the disc spring can operate stably in a high temperature environment, improving service life and enhancing mechanical properties; 2. The present invention can reasonably unify the thickness and size of the disc spring within a very small error range, maintain and improve the qualified rate of each disc spring, avoid the problem of reducing the overall characteristic accuracy of the disc spring, and ensure the smoothness of the disc spring surface, avoiding the problem of damage caused by the disc spring itself due to friction; 3. In the production process of disc springs, the present invention distributes multiple screening measures throughout the production process, effectively removes unqualified disc springs, and prevents unqualified disc springs from flowing into the next production step. On the one hand, it can reduce the fatigue of the subsequent production process, and on the other hand, it can improve the utilization rate of the subsequent production process, ensuring the high qualified performance of the disc springs; 4. When stamping the disc spring, the present invention can maintain the stability of the disc spring under the action of the clamping and positioning assembly, and through the feed-in and feed-out assembly, the disc spring forming stamping die has an automatic feed-in and feed-out function, which is convenient for loading and unloading and improves safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The flowchart is a method for producing disc springs with a high qualified rate; Figure 2A schematic diagram of the three-dimensional structure of a disc spring forming stamping mold for a disc spring production method with a high qualified rate; Figure 3 A schematic diagram of a clamping seat and a first forward and reverse motor structure for a method for producing a disc spring with a high qualified rate; Figure 4 A schematic diagram of the structure of a clamping and positioning assembly for a disc spring production method with a high pass rate; Figure 5 A schematic diagram of the lifting component structure of a disc spring production method with a high pass rate; Figure 6 A schematic diagram of the structure of the feeding and discharging components of a method for producing disc springs with a high qualified rate; Figure 7 A working state diagram of a support table for a disc spring production method with a high qualified rate; Figure 8 The figure is a working state diagram of an installation rack for a production method with a high qualified rate for disc springs.

[0011] Description of the numbers in the figure: 1. Disc spring forming stamping die; 2. Die base; 3. Clamping and positioning assembly; 301. Ring frame; 302. Clamping seat; 303. First forward and reverse motor; 304. Gear column; 305. Slide rail; 306. Gear ring; 307. Rack plate; 308. Slot; 4. Support table; 5. Inlet and outlet assembly; 501. Bevel gear; 502. Z-shaped movable plate; 503. Cavity; 504. First threaded rod; 6. Guard plate; 7. Stamping storage tube; 8. Lifting mechanism; 801. Side frame; 802. Lifting seat; 803. Guide groove; 804. Second forward and reverse motor; 805. Second threaded rod; 806. Guide rod; 807. Mounting frame; 9. Stamping cylinder; 10. Inlet and outlet. DETAILED DESCRIPTION

[0012] The implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0013] The present invention provides a method for producing disc springs with a high qualified rate. Figure 1-Figure 8 , including the following steps: S1. Raw material selection: Use round high-temperature resistant nickel-chromium alloy stainless steel disc springs as the raw material discs of the disc springs, and the diameter of the raw material discs should be larger than the diameter of the disc spring parts by more than 5mm; S2. Turning disc thickness: Calculate the expected thickness required for processing the disc spring according to the material, compression and pressure index of the disc spring, control the error between the expected thickness and the actual thickness within 0.5-1mm, and use a precision lathe to turn the thickness of the raw material disc; S3. Stamping annular rough blank: According to the inner and outer circle size parameters of the disc spring, the estimated size of the inner and outer circles of the stamped disc spring is calculated, and the error between the estimated size of the inner and outer circles and the actual size of the inner and outer circles is controlled to be between positive 0.5-1mm. The disc after turning is stamped by stamping equipment to obtain the disc spring annular rough blank; S4, heat treatment: place the disc spring annular blank in a quenching device for quenching, heat the disc spring annular blank to a temperature 30-50°C above the critical temperature Ac3, keep it warm for 2 hours, place the disc spring annular blank in a water cooling device for cooling, set the cooling temperature to 10-15°C below the critical cooling temperature, cool for 2 hours, and repeat the quenching for at least 3 times; S5. Disc spring stamping: Place the quenched annular blank in the disc spring stamping die 1, and use the disc spring stamping die 1 to stamp the annular blank into a disc spring. The thickness of the disc spring is between 0.1 and 0.2 mm greater than the actual thickness. The stamping force is not less than twice the load at f=0.75h0, and the duration is 2 hours. The stamping times are not less than 5 times. S6. First screening: Use a high-precision screening machine to screen the disc springs after stamping, leaving only the disc springs that meet the size and thickness requirements; S7, Surface treatment: Use precision lathe to turn the disc spring after screening, remove burrs and excess size on the disc spring surface, ensure the disc spring surface is smooth, make the inner and outer circle size and thickness of the disc spring meet the requirements, and control the error between 5-10μm; S8. Second screening: Use a high-precision screening machine to screen the disc springs after surface treatment, leaving only those with smooth surface, uniform thickness and size that meet the requirements; S9, cleaning and drying: Place the screened disc spring in an ultrasonic cleaning device for 1-2 hours of cleaning to remove the dirt layer on the surface of the disc spring, and then dry the disc spring in a dryer to obtain a disc spring with a clean surface; S10, coating: Use electroplating technology to apply a protective coating to the surface of the dried disc spring to enhance the aesthetics of the disc spring and form an anti-corrosion and anti-wear layer that is not affected by the external environment; S11. Third screening: The disc springs are inspected for thickness, size and mechanical properties by visual inspection, dimensional measurement and mechanical testing. Disc springs that do not meet the specified standards will be reworked. S12. Packaging: Carefully package the finished disc springs.

[0014] In the present invention, the disc spring forming stamping die 1 includes a die base 2, and a lifting mechanism 8 is fixedly installed in the middle position of one side of the die base 2, and a punching cylinder 9 is fixedly installed on the lifting mechanism 8. The lifting mechanism 8 includes a side frame 801 fixedly installed in the middle position of one side of the die base 2, and the inner wall of the side frame 801 is rotatably connected to a second threaded rod 805, and a second forward and reverse motor 804 for driving the second threaded rod 805 to rotate is fixedly installed on the top of the side frame 801, a lifting seat 802 is screwed on the second threaded rod 805, and a mounting frame 807 is fixedly installed on one side of the lifting seat 802, and the punching cylinder 9 is fixedly installed on the mounting frame 807, and guide grooves 803 are provided at both ends of the side frame 801, and one side of the lifting seat 802 is slidably set inside the side frame 801 and inside the guide groove 803, and guide holes are provided on both sides of the bottom of the mounting frame 807, and two connecting plates are fixed on one side of the side frame 801, and guide rods 806 passing through the guide holes are fixed on the bottom of the connecting plates. Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the second forward and reverse motor 804 in the lifting mechanism 8 drives the second threaded rod 805 to rotate, thereby lowering the height of the lifting seat 802, the mounting frame 807 and the punching cylinder 9, so as to facilitate adjusting the height of the punching cylinder 9 to make it close to the annular blank.

[0015] In the present invention, a stamping storage cylinder 7 is fixedly installed at the middle position of the top of the mold base 2, and the stamping cylinder 9 is located directly above the stamping storage cylinder 7. An inlet and outlet 10 is opened on one side of the stamping storage cylinder 7, and the inner wall of the inlet and outlet 10 is plugged with a support platform 4. One end of the support platform 4 is attached to the bottom of the inner wall of the stamping storage cylinder 7. A disc spring is arranged on the top of the support platform 4 and inside the stamping storage cylinder 7. An inlet and outlet assembly 5 is arranged at the bottom of the support platform 4. The inlet and outlet assembly 5 includes an opening at The cavity 503 is located in the middle of the mold base 2, and the inner wall of the cavity 503 is rotatably connected to the first threaded rod 504. A bevel gear 501 is fixed to one end of the first threaded rod 504 and the bottom of the second threaded rod 805. The two bevel gears 501 are meshed with each other. A through hole is opened at the top of one end of the cavity 503, and a Z-shaped movable plate 502 passing through the through hole is screwed on the first threaded rod 504. The top end of the Z-shaped movable plate 502 is fixedly connected to the bottom end of the support platform 4. Figure 2 , Figure 3 and Figure 6 As shown, when the lifting mechanism 8 is working, it cooperates with the bevel gear 501 in the feed and discharge assembly 5 to drive the first threaded rod 504 to rotate, adjusts the position of the Z-shaped movable plate 502 on the first threaded rod 504 and in the cavity 503, and drives the support platform 4 and the annular rough blank to enter and exit the stamping storage cylinder 7, which is convenient for loading and unloading and improves safety performance.

[0016] In the present invention, an arc-shaped guard plate 6 is fixedly installed on one side of the top of the support platform 4, and the inner wall of the guard plate 6 is adapted to the inner wall of the stamping storage tube 7, and the guard plate 6 is attached to the inner wall of the inlet and outlet 10. The stamping storage tube 7 is provided with a clamping and positioning assembly 3, and the clamping and positioning assembly 3 includes an annular frame 301 fixedly installed on the outer wall of the stamping storage tube 7, and the inner wall of the annular frame 301 is rotatably connected with tooth columns 304 distributed at equal distances through a pin shaft, and a first forward and reverse motor 303 for driving the tooth column 304 to rotate is fixedly installed on the top of the annular frame 301, and a slide rail 305 is fixedly installed on the bottom of the inner wall of the annular frame 301, and the slide rail 305 is fixedly installed on the bottom of the inner wall of the annular frame 301. 5 is slidably provided with a toothed ring 306, and the inner wall of the toothed ring 306 meshes with the outer wall bottom of the tooth column 304, the inner wall of the stamping storage tube 7 is provided with equally spaced guide openings, and the inner wall of the guide openings is slidably provided with a rack plate 307, one side of the rack plate 307 meshes with the outer wall top of the tooth column 304, and one end of the rack plate 307 is fixedly installed with an arc-shaped clamping seat 302, the inner wall of the stamping storage tube 7 is provided with equally spaced card slots 308, and the card slots 308 are communicated with the guide openings, the position of the card slots 308 corresponds to the position of the clamping seat 302, and a protective pad is fixed to one end of the clamping seat 302. Figure 2 , Figure 3 and Figure 4 As shown, the first forward and reverse motor 303 in the clamping and positioning assembly 3 drives the gear column 304 and the gear ring 306 to rotate, and the meshing action of the gear column 304 and the rack plate 307 drives the clamping seat 302 to move, thereby fixing the annular blank and ensuring the stability of the annular blank during stamping.

[0017] In summary: when in use, the disc spring production method is formed in sequence, including raw material selection, disc thickness turning, stamping annular blank, heat treatment, disc spring stamping, first screening, surface treatment, second screening, cleaning and drying, coating, third screening and packaging. When stamping the disc spring, the quenched annular blank is placed on the support table 4 in the disc spring forming stamping die 1, and the second forward and reverse motor 804 in the lifting mechanism 8 drives the second threaded rod 805 to rotate, lowers the height of the lifting seat 802, the mounting frame 807 and the stamping cylinder 9, cooperates with the bevel gear 501 in the feed and discharge assembly 5 to drive the first threaded rod 504 to rotate, and adjusts the Z-shaped The movable plate 502 is positioned on the first threaded rod 504 and in the cavity 503, pushing the support platform 4 and the annular blank into the stamping storage tube 7, and the first forward and reverse motor 303 in the clamping and positioning assembly 3 drives the gear column 304 and the gear ring 306 to rotate, and the meshing action of the gear column 304 and the rack plate 307 drives the clamping seat 302 to move, thereby fixing the annular blank, and then the stamping operation is performed through the stamping cylinder 9. After the stamping is completed, the clamping and positioning assembly 3 is loosened, and the support platform 4 is reset by the reset action of the lifting mechanism 8 and the reset action of the feed-in and feed-out assembly 5, so that the disc spring forming stamping die 1 has an automatic feed-in and feed-out function, which is convenient for loading and unloading.

[0018] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A method for producing disc springs with a high pass rate, characterized in that: The following steps are involved: S1. Raw material selection: Use round high-temperature resistant nickel-chromium alloy stainless steel disc springs as the raw material discs of the disc springs, and the diameter of the raw material discs should be larger than the diameter of the disc spring parts by more than 5mm; S2. Turning disc thickness: Calculate the expected thickness required for processing the disc spring according to the material, compression and pressure index of the disc spring, control the error between the expected thickness and the actual thickness within 0.5-1mm, and use a precision lathe to turn the thickness of the raw material disc; S3. Stamping annular rough blank: According to the inner and outer circle size parameters of the disc spring, the estimated size of the inner and outer circles of the stamped disc spring is calculated, and the error between the estimated size of the inner and outer circles and the actual size of the inner and outer circles is controlled to be between positive 0.5-1mm. The disc after turning is stamped by stamping equipment to obtain the disc spring annular rough blank; S4, heat treatment: place the disc spring annular blank in a quenching device for quenching, heat the disc spring annular blank to a temperature 30-50°C above the critical temperature Ac3, keep it warm for 2 hours, place the disc spring annular blank in a water cooling device for cooling, set the cooling temperature to 10-15°C below the critical cooling temperature, cool for 2 hours, and repeat the quenching for at least 3 times; S5. Disc spring stamping: the quenched annular blank is placed in a disc spring stamping die (1), and the annular blank is stamped into a disc spring using the disc spring stamping die (1). The thickness of the disc spring is greater than the actual thickness by 0.1-0.2 mm, the stamping force is not less than twice the load at f=0.75h0, and the duration is 2 hours, and the stamping times are not less than 5 times; S6. First screening: Use a high-precision screening machine to screen the disc springs after stamping, leaving only the disc springs that meet the size and thickness requirements; S7, Surface treatment: Use precision lathe to turn the disc spring after screening, remove burrs and excess size on the disc spring surface, ensure the disc spring surface is smooth, make the inner and outer circle size and thickness of the disc spring meet the requirements, and control the error between 5-10μm; S8. Second screening: Use a high-precision screening machine to screen the disc springs after surface treatment, leaving only those with smooth surface, uniform thickness and size that meet the requirements; S9, cleaning and drying: Place the screened disc spring in an ultrasonic cleaning device for 1-2 hours of cleaning to remove the dirt layer on the surface of the disc spring, and then dry the disc spring in a dryer to obtain a disc spring with a clean surface; S10, coating: Use electroplating technology to apply a protective coating to the surface of the dried disc spring to enhance the aesthetics of the disc spring and form an anti-corrosion and anti-wear layer that is not affected by the external environment; S11. Third screening: The disc springs are inspected for thickness, size and mechanical properties by visual inspection, dimensional measurement and mechanical testing. Disc springs that do not meet the specified standards will be reworked. S12. Packaging: Carefully package the finished disc springs.

2. The method for producing a disc spring with a high qualified rate according to claim 1, characterized in that: The disc spring forming stamping die (1) comprises a die base (2), and a lifting mechanism (8) is fixedly mounted at a middle position on one side of the die base (2), and a stamping cylinder (9) is fixedly mounted on the lifting mechanism (8).

3. The method for producing a disc spring with a high qualified rate according to claim 2, characterized in that: The lifting mechanism (8) comprises a side frame (801) fixedly mounted at a middle position on one side of the mold base (2), and the inner wall of the side frame (801) is rotatably connected to a second threaded rod (805), a second forward and reverse motor (804) for driving the second threaded rod (805) to rotate is fixedly mounted on the top of the side frame (801), a lifting seat (802) is screwed onto the second threaded rod (805), and a mounting frame (807) is fixedly mounted on one side of the lifting seat (802), and the punching cylinder (9) is fixedly mounted on the mounting frame (807).

4. The method for producing a disc spring with a high qualified rate according to claim 3, characterized in that: Both ends of the side frame (801) are provided with guide grooves (803), and one side of the lifting seat (802) is slidably arranged inside the side frame (801) and inside the guide groove (803). Both sides of the bottom of the mounting frame (807) are provided with guide holes, and two connecting plates are fixed to one side of the side frame (801), and guide rods (806) passing through the guide holes are fixed to the bottom of each connecting plate.

5. The method for producing a disc spring with a high qualified rate according to claim 4, characterized in that: A punching storage cylinder (7) is fixedly mounted at the middle position of the top of the mold base (2), and the punching cylinder (9) is located directly above the punching storage cylinder (7). An inlet and outlet (10) is opened on one side of the punching storage cylinder (7), and a support platform (4) is inserted into the inner wall of the inlet and outlet (10), one end of the support platform (4) is attached to the bottom of the inner wall of the punching storage cylinder (7), a disc spring is arranged on the top of the support platform (4) and inside the punching storage cylinder (7), and a material inlet and outlet assembly (5) is arranged at the bottom of the support platform (4).

6. The method for producing a disc spring with a high qualified rate according to claim 5, characterized in that: The material inlet and outlet assembly (5) comprises a cavity (503) opened inside the middle position of the mold base (2), and the inner wall of the cavity (503) is rotatably connected to a first threaded rod (504), one end of the first threaded rod (504) and the bottom of the second threaded rod (805) are both fixed with bevel gears (501), and the two bevel gears (501) are meshed with each other, a through opening is opened at the top of one end of the cavity (503), and a Z-shaped movable plate (502) passing through the through opening is screwed on the first threaded rod (504), and the top end of the Z-shaped movable plate (502) is fixedly connected to the bottom end of the support platform (4).

7. The method for producing a disc spring with a high qualified rate according to claim 6, characterized in that: An arc-shaped guard plate (6) is fixedly mounted on one side of the top of the support platform (4), and the inner wall of the guard plate (6) is matched with the inner wall of the punching storage tube (7). The guard plate (6) is attached to the inner wall of the inlet and outlet (10), and a clamping and positioning assembly (3) is provided on the punching storage tube (7).

8. The method for producing a disc spring with a high qualified rate according to claim 7, characterized in that: The clamping and positioning assembly (3) comprises an annular frame (301) fixedly mounted on the outer wall of the punching storage cylinder (7), and the inner wall of the annular frame (301) is rotatably connected to toothed columns (304) distributed at equal distances via a pin shaft, a first forward and reverse motor (303) for driving the toothed columns (304) to rotate is fixedly mounted on the top of the annular frame (301), and a slide rail (305) is fixedly mounted on the bottom of the inner wall of the annular frame (301), and the slide rail (305) is fixedly mounted on the bottom of the inner wall of the annular frame (301). 5) is slidably provided with a toothed ring (306), and the inner wall of the toothed ring (306) is meshed with the bottom of the outer wall of the toothed column (304), the inner wall of the stamping storage tube (7) is provided with guide openings distributed at equal distances, and the inner walls of the guide openings are slidably provided with rack plates (307), one side of the rack plates (307) is meshed with the top of the outer wall of the toothed column (304), and one end of the rack plates (307) is fixedly installed with an arc-shaped clamping seat (302).

9. The method for producing a disc spring with a high qualified rate according to claim 8, characterized in that: The inner wall of the punching storage tube (7) is provided with equidistantly distributed card slots (308), and the card slots (308) are communicated with the guide opening. The position of the card slots (308) corresponds to the position of the clamping seat (302), and a protective pad is fixed to one end of the clamping seat (302).

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