A precision stamping device for diaphragm spring arc fingers

Abstract

This utility model relates to a precision stamping device for diaphragm spring arc fingers, comprising a lower pressure plate, a connecting plate installed at the lower end of the lower pressure plate, a stamping column installed in the connecting plate, and a load-bearing plate installed below. A drive assembly is installed between the load-bearing plate and the lower pressure plate, and the drive assembly is used to drive the lower pressure plate to stamp and form the diaphragm. A support plate is installed at the upper end of the load-bearing plate. This utility model reduces the high-frequency heating and quenching forming process by using a drive assembly to drive the lower pressure plate and the stamping column to perform stamping work on the mold, thereby reducing the processing time of each part and realizing continuous production of diaphragm stamping without frequent interruptions in heating and cooling, improving the overall processing efficiency. Furthermore, the direct stamping process can precisely control the stamping action of the mold, reducing dimensional changes caused by heating and cooling, and improving product quality.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and in particular to a precision stamping device for diaphragm spring arc fingers. Background Technology

[0002] A diaphragm is a thin and flexible sheet material commonly used in various mechanical, electronic, and biomedical fields. Its specific definition and uses vary depending on the application scenario. In the diaphragm production process, a diaphragm spring arc finger precision stamping device is required to accurately stamp out the arc-shaped release finger structure during the processing of the diaphragm spring. The diaphragm spring arc finger precision stamping device is widely used in the production of automotive clutch diaphragm springs.

[0003] Existing stamping equipment typically combines high-frequency heating and quenching, which requires additional time to complete the heating and cooling process to ensure that the diaphragm spring reaches the required hardness and strength after quenching. This increases the stamping time of the diaphragm spring, making it impossible for the equipment to complete more stamping tasks per unit time and reducing the overall production efficiency. Utility Model Content

[0004] The technical problem to be solved by this invention is that existing stamping devices, combined with high-frequency heating and quenching, require additional time to complete the heating and cooling process, ensuring that the diaphragm spring can reach the required hardness and strength after quenching. This increases the stamping time of the diaphragm spring and reduces the overall production efficiency.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A precision stamping device for diaphragm spring arc fingers includes a lower pressure plate, a connecting plate installed at the lower end of the lower pressure plate, a stamping column installed in the connecting plate, and a load-bearing plate installed below. A driving assembly is installed between the load-bearing plate and the lower pressure plate. The driving assembly is used to drive the lower pressure plate to stamp and form. A support plate is installed at the upper end of the load-bearing plate.

[0006] The beneficial effects of this utility model are: by using a drive assembly to drive the lower pressure plate connected to the stamping column to perform stamping work on the mold, the high-frequency heating and quenching forming work is reduced, the processing time of each part is reduced, and continuous production of diaphragm stamping is realized without frequent interruption of heating and cooling, thereby improving the overall processing efficiency. Moreover, the direct stamping process can precisely control the mold to perform stamping actions, reduce dimensional changes caused by heating and cooling, and improve product quality.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a pressure plate is fixed to the lower end of the connecting plate, and an elastic support is installed inside the connecting plate. The elastic support is used to allow the diaphragm to spring back in time after being stamped.

[0009] Furthermore, a movable plate is fixed to the upper end of the support plate, and a stamping plate is fixed to the upper end of the movable plate. The stamping plate is used to place the mold for rapid stamping and forming.

[0010] Furthermore, the movable plate is provided with a connecting rod circumferentially inside, and a spring is provided at one end of the connecting rod. The movable plate is movably set along the support plate by means of the spring.

[0011] Furthermore, both the elastic support and the rebound spring are equipped with spring rubber dampers inside.

[0012] Furthermore, the drive assembly includes a hydraulic cylinder, a connecting sleeve mounted on the lower pressure plate and the load-bearing plate, and a butt joint mounted on one end of the hydraulic cylinder.

[0013] Furthermore, the hydraulic column is fixedly connected to the lower pressure plate and the load-bearing plate through a butt joint, and the connecting sleeve is equipped with a limit bolt inside, and the connecting sleeve is threadedly fixed to the lower pressure plate and the load-bearing plate through the limit bolt.

[0014] Furthermore, a movable rod is installed on one side of the hydraulic column. The movable rod is fixedly connected to the lower pressure plate, and a support block is installed at one end of the movable rod. The movable rod is installed to the load-bearing plate through the support block.

[0015] The beneficial effects of adopting the above-mentioned further solutions are: by using rebound springs and elastic support components to support the rebound, the mold or stamping parts can be quickly restored to the initial position after stamping is completed, reducing the stamping cycle time, completing more stamping tasks per unit time, quickly releasing the generated residual stress, avoiding part deformation or cracking caused by stress accumulation, and improving product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a diaphragm spring arc finger precision stamping device according to the present invention; Figure 2 This is a schematic diagram of the connecting disc structure of this utility model; Figure 3 This is a schematic diagram of the pressure plate structure of this utility model; Figure 4 This is a schematic diagram of the stamped column structure of this utility model; Figure 5 This is a schematic diagram of the movable plate structure of this utility model; The attached diagram lists the components represented by each number as follows: 1. Lower pressure plate; 2. Load-bearing plate; 3. Connecting plate; 4. Pressure plate; 5. Stamping column; 6. Elastic support component; 7. Stamping plate; 8. Movable plate; 9. Support plate; 10. Connecting rod; 11. Rebound spring; 12. Hydraulic column; 13. Connecting sleeve; 14. Butt joint; 15. Support block; 16. Movable rod. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0019] Stamped diaphragms are thin, sheet-like elastic elements manufactured through a stamping process. They have wide applications in industry, especially in mechanical engineering and automation equipment. The main function of stamped diaphragms is to convert changes in pressure or force into measurable physical quantities, or to achieve sealing, connection, and elastic support in mechanical structures. Their manufacturing process involves shaping metal material under pressure using a stamping die to obtain the desired shape and size.

[0020] The choice of material for stamped diaphragms is crucial and is usually determined based on their operating environment and functional requirements. For example, stainless steel diaphragms have good corrosion resistance and high strength, making them suitable for harsh working environments such as chemical and marine equipment; brass diaphragms, due to their good electrical and thermal conductivity, are often used in electronic equipment and electrical switches; while phosphor bronze diaphragms, with their excellent elasticity and fatigue resistance, are widely used in high-precision pressure sensors and mechanical oscillators.

[0021] During the stamping process, the shape and dimensional accuracy of the diaphragm directly affect the performance of the final product. The design of the stamping die requires precise calculations of the diaphragm's deformation characteristics to ensure that the required elastic deformation range and stress distribution are achieved after stamping. The thickness of the stamping diaphragm typically ranges from a few millimeters to tens of millimeters, depending on the pressure range it withstands and the operational requirements. Thinner diaphragms offer higher sensitivity but relatively lower strength; while thicker diaphragms can withstand greater pressure, but their sensitivity will decrease.

[0022] The applications of stamped diaphragms are very wide. In mechanical pressure sensors, the stamped diaphragm, as a core component, converts pressure changes into displacement or strain changes, which are then converted into electrical signals by strain gauges or capacitive sensors. These sensors are widely used in automotive, aerospace, and industrial automation fields to monitor the pressure status of hydraulic systems, pneumatic systems, and engines. For example, in automotive fuel pressure monitoring systems, stamped diaphragms can sense changes in fuel pressure in real time and transmit the signal to the engine control unit, thereby achieving precise fuel injection control and improving fuel economy and engine performance.

[0023] The manufacturing process of stamped diaphragms is also constantly evolving and improving. With advancements in high-precision stamping equipment and mold manufacturing technology, the dimensional accuracy and shape complexity of stamped diaphragms have been significantly improved. For example, modern stamping technology can manufacture diaphragms with complex geometries and minute dimensions, meeting the miniaturization and high-performance requirements of high-end equipment. Simultaneously, advanced material testing technologies and quality control systems ensure the quality and consistency of stamped diaphragms throughout the production process.

[0024] Stamped diaphragms, as important elastic elements, play a crucial role in the industrial field. Manufactured through a precise stamping process, they possess excellent elasticity, corrosion resistance, and reliability. Stamped diaphragms play a vital role in numerous fields, including pressure sensors, diaphragm pumps, automated equipment, and smart sensors, providing crucial support for the efficient operation and technological innovation of modern industry. With the continuous development of materials science and manufacturing technology, the performance and application scope of stamped diaphragms will be further expanded, offering more possibilities for future industrial development.

[0025] like Figures 1-5 As shown, the device includes a lower pressure plate 1, a connecting plate 3 installed at the lower end of the lower pressure plate 1, a stamping column 5 installed inside the connecting plate 3, and a load-bearing plate 2 installed below. A drive assembly is installed between the load-bearing plate 2 and the lower pressure plate 1. The drive assembly is used to drive the lower pressure plate 1 to stamp and form. A support plate 9 is installed at the upper end of the load-bearing plate 2. A pressure plate 4 is fixedly connected to the lower end of the connecting plate 3. An elastic support 6 is installed inside the connecting plate 3. The elastic support 6 is used to rebound the stamped diaphragm in a timely manner. The elastic support 6 can ensure that the mold or stamping part quickly returns to the initial position after stamping, reducing the stamping cycle time. At the same time, the elastic support 6 can effectively absorb the impact force during the stamping process, reduce the wear of the equipment, and extend the service life of the equipment.

[0026] like Figures 2-4As shown, a movable plate 8 is fixed to the upper end of the support plate 9, and a stamping plate 7 is fixedly connected to the upper end of the movable plate 8. The stamping plate 7 is used to place the mold for rapid stamping. The design of the stamping plate 7 makes the placement and replacement of the mold more convenient and quick, improves production efficiency, ensures the positional accuracy of the mold during the stamping process, and thus improves product quality. A connecting rod 10 is provided circumferentially inside the movable plate 8, and a spring 11 is provided at one end of the connecting rod 10. The movable plate 8 is movably set along the support plate 9 through the movable spring. The circumferential setting of the connecting rod 10 ensures that the movable plate 8 is evenly stressed, which improves the stability of the stamping process. Both the elastic support 6 and the spring 11 are equipped with spring rubber dampers. The spring rubber dampers can effectively absorb the impact force during the rebound process, reduce the vibration and noise of the equipment, and improve the operating stability of the equipment. The use of the hydraulic column 12 provides a strong driving force to ensure the stability and reliability of the stamping process.

[0027] like Figures 3-5 As shown, the drive assembly includes a hydraulic column 12, a connecting sleeve 13 mounted on the lower pressure plate 1 and the load-bearing plate 2, and a connector 14 mounted on one end of the hydraulic column 12. The hydraulic column 12 is fixedly connected to the lower pressure plate 1 and the load-bearing plate 2 through the connector 14. The connecting sleeve 13 is provided with a limiting bolt inside, and the connecting sleeve 13 is threadedly fixed to the lower pressure plate 1 and the load-bearing plate 2 through the limiting bolt. The connector 14 and the limiting bolt ensure a firm connection between the hydraulic column 12 and the lower pressure plate 1 and the load-bearing plate 2, improving the structural stability of the equipment. A movable rod 16 is installed on one side of the hydraulic column 12, and the movable rod 16 is fixedly connected to the lower pressure plate 1. A support block 15 is installed at one end of the movable rod 16, and the movable rod 16 is installed to the load-bearing plate 2 through the support block 15. The design of the movable rod 16 and the support block 15 provides additional support for the hydraulic column 12, effectively distributing the load of the hydraulic column 12, reducing the wear of the equipment, and extending the service life of the equipment.

[0028] Working principle: When a diaphragm needs to be stamped, the diaphragm is first placed in the stamping plate 7. When the hydraulic column 12 is started, it pushes the lower pressure plate 1 downward through the connector 14. The lower pressure plate 1 drives the connecting plate 3 and the stamping column 5 to move downward, stamping the mold placed on the stamping plate 7. After the stamping is completed by the pressure plate 4 and the stamping plate 7, the hydraulic column 12 retracts, and the lower pressure plate 1 quickly rebounds under the action of the elastic support 6 and the rebound spring 11, returning to its initial position. The spring rubber damper inside the elastic support 6 and the rebound spring 11 can effectively absorb the impact force during the rebound process, ensuring a smooth and reliable rebound process. The mold can quickly return to its initial state after stamping, reducing the stamping cycle time and realizing continuous stamping operation. When it is necessary to change the mold or adjust the stamping parameters, the stroke and pressure of the hydraulic column 12 are adjusted, and different specifications of the elastic support 6 and the rebound spring 11 are replaced to quickly adapt to different stamping tasks and realize the rapid stamping of the diaphragm.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision stamping device for diaphragm spring arc fingers, characterized in that, It includes a lower pressure plate (1), a connecting plate (3) installed at the lower end of the lower pressure plate (1), a stamping column (5) installed in the connecting plate (3) and a load-bearing plate (2) installed below. A drive assembly is installed between the load-bearing plate (2) and the lower pressure plate (1). The drive assembly is used to drive the lower pressure plate (1) to be stamped and formed. A support plate (9) is installed at the upper end of the load-bearing plate (2).

2. The precision stamping device for diaphragm spring arc fingers according to claim 1, characterized in that, A pressure plate (4) is fixed to the lower end of the connecting plate (3), and an elastic support (6) is installed inside the connecting plate (3). The elastic support (6) is used to rebound in time after the diaphragm is stamped.

3. The precision stamping device for diaphragm spring arc fingers according to claim 2, characterized in that, A movable plate (8) is fixed to the upper end of the support plate (9), and a stamping plate (7) is fixed to the upper end of the movable plate (8). The stamping plate (7) is used to place the mold for rapid stamping.

4. The precision stamping device for diaphragm spring arc fingers according to claim 3, characterized in that, The movable plate (8) is provided with a connecting rod (10) in the inner circumference. One end of the connecting rod (10) is provided with a spring (11). The movable plate (8) is movably set along the support plate (9) by means of the movable spring.

5. The precision stamping device for diaphragm spring arc fingers according to claim 1, characterized in that, Both the elastic support (6) and the rebound spring (11) are equipped with spring rubber dampers inside.

6. The precision stamping device for diaphragm spring arc fingers according to claim 1, characterized in that, The drive assembly includes a hydraulic cylinder (12), a connecting sleeve (13) mounted on the lower pressure plate (1) and the load-bearing plate (2), and a butt joint (14) mounted on one end of the hydraulic cylinder (12).

7. The precision stamping device for diaphragm spring arc fingers according to claim 1, characterized in that, The hydraulic column (12) is fixedly connected to the lower pressure plate (1) and the load-bearing plate (2) through the butt joint (14). The connecting sleeve (13) is provided with a limit bolt inside. The connecting sleeve (13) is threadedly fixed to the lower pressure plate (1) and the load-bearing plate (2) through the limit bolt.

8. A precision stamping device for diaphragm spring arc fingers according to claim 7, characterized in that, A movable rod (16) is installed on one side of the hydraulic column (12). The movable rod (16) is fixedly connected to the lower pressure plate (1). A support block (15) is installed at one end of the movable rod (16). The movable rod (16) is installed to the load-bearing plate (2) through the support block (15).

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