Stamping die for manufacturing automobile oil seal cover

Abstract

The utility model discloses a stamping die for manufacturing an automobile oil seal cover, which comprises a lower die holder and an upper die holder, the lower die holder comprises a base, a fixed frame and a fixed seat, the base is connected with the fixed frame, the fixed frame is fixedly connected with the fixed seat, the fixed seat is provided with a die holder self-locking structure and a detachable concave die holder, and the concave die holder is fixedly connected with the base. The four side faces of the female die base are each provided with a plurality of locking grooves used for being connected with a die base self-locking structure. By adopting the design of the self-locking and demolding device, the manual operation time is greatly shortened, the stamping process is accelerated, the production efficiency is improved, the die is more convenient to replace and maintain due to the detachable female die holder and the die holder self-locking structure, and the downtime is shortened.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die for manufacturing automotive oil seal caps. Background Technology

[0002] In modern automobile manufacturing, oil seals, as critical sealing elements, play a vital role in protecting the engine's internal lubrication system. The precision and efficiency of their manufacturing process directly affect the overall vehicle performance and reliability.

[0003] Traditional automotive oil seal cap manufacturing uses stamping dies that require complex tools and cumbersome steps for replacement and adjustment. Each die component needs to be assembled one by one, which leads to extended production cycles, affects the company's market responsiveness, increases die replacement time, and requires operators with high technical skills, resulting in high labor intensity for workers and reduced production efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a stamping die for manufacturing automotive oil seal caps, which can effectively solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A stamping die for manufacturing automotive oil seal caps includes a lower die base and an upper die base. The lower die base includes a base, a fixed frame, and a fixed seat. The base is connected to the fixed frame, and the fixed frame is fixedly connected to the fixed seat. The fixed seat is provided with a die base self-locking structure and a detachable die base. The four sides of the die base are provided with multiple locking grooves for connecting the die base self-locking structure.

[0007] The self-locking structure of the mold base includes a mounting base on a fixed base, and pneumatic component one and pneumatic component two arranged sequentially in the mounting base. The mounting base is provided with a first locking tongue and a second locking tongue. The mounting base is also provided with a channel for the movement of the first locking tongue and the second locking tongue. The first locking tongue is connected to pneumatic component one, and the second locking tongue is connected to pneumatic component two. The first locking tongue and the second locking tongue are respectively connected to the lock groove through pneumatic component one and pneumatic component two.

[0008] As a further description of the above technical solution, the upper mold base includes a mounting plate and a punch disposed on the mounting plate. The mounting plate is provided with a plurality of guide posts, which are sequentially inserted into the fixed frame and the base. A buffer structure is also provided between the fixed frame and the base.

[0009] As a further description of the above technical solution, the buffer structure includes several guide rods and springs sleeved on the guide rods. One end of each guide rod is fixedly connected to the base, and the other end of each guide rod is movably inserted into the fixed frame. Each guide rod is distributed around the four sides of the base.

[0010] As a further description of the above technical solution, the fixed base is provided with an installation groove for installing the die holder, the die holder is fitted into the installation groove, and the die holder is also connected to the fixed base by bolts. A limiting groove is provided on one side of the installation groove, and the die holder is provided with a limiting block for connecting to the limiting groove.

[0011] As a further description of the above technical solution, the die holder is provided with a molding cavity and a first high-pressure gas input interface. The bottom of the molding cavity is provided with a demolding structure. The demolding structure includes a piston sleeve and a demolding ejector rod connected to the piston sleeve. The piston sleeve is connected to the first high-pressure gas input interface through a conduit.

[0012] As a further description of the above technical solution, the piston sleeve is coaxially sleeved on the demolding ejector rod, the demolding ejector rod is vertically disposed at the bottom of the molding cavity, and the demolding ejector rod moves along the axial direction of the piston sleeve.

[0013] As a further description of the above technical solution, one side of the mounting base is provided with a second high-pressure air input interface and a three-way pipe connected to the second high-pressure air input interface, and the three-way pipe is respectively connected to pneumatic component one and pneumatic component two.

[0014] As a further description of the above technical solution, both the pneumatic component one and the pneumatic component two include a cylinder and a control valve connected to the cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The present invention relates to a stamping die for manufacturing automotive oil seal caps, which has at least one of the following beneficial effects during use:

[0017] The design employing a self-locking and demolding device significantly reduces manual operation time, accelerates the stamping process, and improves production efficiency. The detachable die holder and self-locking structure make die replacement and maintenance more convenient, reducing downtime. The self-locking mechanism, controlled by a pneumatic component, connects the locking tongue to the corresponding locking groove, ensuring the safety of the die during operation and reducing operational risks caused by die loosening. Precise die alignment and fixation ensure the shape and dimensional accuracy of the stamped workpiece, contributing to improved overall product quality. Furthermore, a buffer structure absorbs impact forces, reducing die material fatigue and extending die life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a stamping die for manufacturing an automotive oil seal cap according to this utility model;

[0019] Figure 2 This is an exploded structural diagram of a stamping die for manufacturing an automotive oil seal cap according to the present invention.

[0020] Figure 3 This is a first perspective structural schematic diagram of a stamping die for manufacturing an automotive oil seal cap according to the present invention;

[0021] Figure 4 This is a second perspective structural schematic diagram of a stamping die for manufacturing an automotive oil seal cap according to this utility model.

[0022] Numbering on the map:

[0023] 1. Lower mold base; 101. Base; 102. Fixing frame; 103. Fixing seat; 2. Upper mold base; 201. Mounting plate; 202. Punch; 203. Guide post; 3. Die base; 301. Molding cavity; 302. Positioning block; 303. First high-pressure air input interface; 304. Piston sleeve; 305. Ejector rod; 306. Limiting block; 4. Mold base self-locking structure; 401. Pneumatic component one; 402. Pneumatic component two; 403. First locking tongue; 404. T-pipe; 405. Second locking tongue; 406. Second high-pressure air input interface; 5. Buffer structure; 501. Spring; 502. Guide rod. Detailed Implementation

[0024] 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.

[0025] like Figure 1-4 As shown, this utility model provides a stamping die for manufacturing automotive oil seal caps, including a lower die base and an upper die base. The lower die base includes a base, a fixed frame, and a fixed seat. The base is connected to the fixed frame, and the fixed frame is fixedly connected to the fixed seat. The fixed seat is provided with a die base self-locking structure and a detachable die base. The four sides of the die base are provided with multiple locking grooves for connecting the die base self-locking structure.

[0026] The lower mold base in this embodiment includes a base, a fixed frame, and a fixed seat. The fixed seat has a mold base self-locking structure, which ensures that the die base is firmly fixed in the working state and is not easy to loosen. The die base is detachably mounted on the fixed seat. Together with the mold base self-locking structure, it makes the mold more stable and easier to replace and maintain, thereby reducing downtime.

[0027] The self-locking structure of the mold base includes a mounting base on a fixed base, and pneumatic component one and pneumatic component two arranged sequentially in the mounting base. The mounting base is provided with a first locking tongue and a second locking tongue. The mounting base is also provided with a channel for the movement of the first locking tongue and the second locking tongue. The first locking tongue is connected to pneumatic component one, and the second locking tongue is connected to pneumatic component two. The first locking tongue and the second locking tongue are respectively connected to the lock groove through pneumatic component one and pneumatic component two.

[0028] In this embodiment, the self-locking structure of the die holder controls the movement of the first and second locking tongues through pneumatic components one and two. First, when the die is closed, the pneumatic components push one locking tongue into the locking groove, thereby achieving self-locking of the die holder and ensuring that the die does not shift during the stamping process.

[0029] When stamping begins, the punch on the upper die holder moves downward and engages with the die cavity on the lower die holder to stamp the workpiece. During this process, the fixed die cavity remains stable and does not deform under the action of the self-locking structure. At the same time, the buffer structure set between the fixed frame and the base can absorb the impact, reduce the stress on the die, and improve the durability of the die.

[0030] After stamping, gas is injected into the piston sleeve through the second high-pressure air input interface. The piston sleeve pushes the ejector pin, lifting the workpiece and thus achieving demolding. This design improves the efficiency and integrity of demolding, avoiding damage caused by workpiece adhesion. The use of pneumatic components enables precise control of the locking tongue, ensuring automation of self-locking and demolding operations in different mold states, thereby improving production efficiency.

[0031] The design of the self-locking and demolding devices reduces manual operation time, accelerates the stamping process, and improves production efficiency. The detachable die holder and self-locking structure of the die holder make die replacement and maintenance more convenient, reducing downtime. The self-locking mechanism, controlled by a pneumatic component, connects the locking tongue structure to the corresponding locking groove, ensuring the safety of the die during operation and reducing operational risks caused by die loosening. Precise die alignment and fixation ensure the shape and dimensional accuracy of the stamped workpiece, improving overall product quality. Furthermore, a buffer structure is incorporated to absorb impact forces, reduce die material fatigue, and extend die life.

[0032] Furthermore, the upper mold base includes a mounting plate and a punch mounted on the mounting plate. The mounting plate is provided with several guide posts, which are sequentially inserted into the fixed frame and the base. A buffer structure is also provided between the fixed frame and the base.

[0033] The upper die holder includes a mounting plate and a punch mounted thereon. The mounting plate provides support and ensures that the punch remains stable and aligned during stamping. The guide pillars allow the entire upper die holder to move along a fixed axis, ensuring that the punch is properly aligned with the die cavity of the lower die holder.

[0034] Guide pillars run through the fixed frame and base, forming a guiding system. The punch moves up and down precisely guided by the guide pillars, preventing lateral deviation and ensuring that force transmission is vertical and efficient during the stamping process. The buffer structure between the fixed frame and base, typically composed of springs, is designed to absorb impact energy and vibration. When the punch moves downward and applies pressure, the buffer structure absorbs the instantaneous force generated during stamping, preventing damage to the die or related equipment.

[0035] Furthermore, the buffer structure includes several guide rods and springs sleeved on the guide rods. One end of each guide rod is fixedly connected to the base, and the other end of each guide rod is movably inserted into the fixed frame. Each guide rod is distributed around the four sides of the base.

[0036] During the stamping process, a significant impact force is generated between the upper and lower die holders, which is transmitted to the die structure. As the punch moves downwards, the guide rod moves downwards due to the punch's action, while the spring is compressed. The guide rod is evenly distributed around the base, a design that evenly disperses the impact force, avoiding localized stress concentration and contributing to the overall structural stability. The spring stores the energy generated during the impact and cushions this impact through elastic recovery, helping to reduce direct impact on the die. After the punch completes its stamping, the guide rod moves upwards under the restoring force of the spring, returning the punch to its initial position. The spring's cushioning effect ensures a smooth return, reducing wear and collisions between mechanical parts and extending the die's service life.

[0037] Furthermore, the fixed base has an installation groove for installing the die holder, the die holder is fitted into the installation groove, and the die holder is also connected to the fixed base by bolts. A limiting groove is provided on one side of the installation groove, and the die holder is provided with a limiting block for connecting to the limiting groove.

[0038] The die holder is connected to the fixed base by bolts, ensuring its stability and reliability during use. The bolt connection prevents the die holder from loosening or shifting during high-pressure stamping operations. A limiting groove is provided on one side of the mounting slot, and the die holder is designed with a limiting block that mates with the limiting groove. This design allows the die holder to be accurately positioned during installation, preventing movement during the stamping process. During stamping operations, the engagement of the limiting block and the limiting groove prevents excessive displacement of the die holder, thus maintaining alignment with the punch and ensuring accuracy and consistency during stamping.

[0039] Furthermore, the die holder is provided with a molding cavity and a first high-pressure gas input interface. The bottom of the molding cavity is provided with a demolding structure. The demolding structure includes a piston sleeve and a demolding ejector rod connected to the piston sleeve. The piston sleeve is connected to the first high-pressure gas input interface through a conduit.

[0040] The forming cavity on the die holder is used to form the material to be processed. During stamping or forming, it holds the material and shapes it to the desired form. The first high-pressure gas inlet is connected to the piston sleeve via a conduit, supplying high-pressure gas into the piston sleeve. This gas applies pressure, acting on the bottom of the piston.

[0041] Furthermore, the piston sleeve is coaxially sleeved on the demolding ejector rod, the demolding ejector rod is vertically disposed at the bottom of the molding cavity, and the demolding ejector rod moves along the axial direction of the piston sleeve.

[0042] The piston sleeve is coaxially fitted onto the ejector pin, ensuring that the ejector pin and piston sleeve are on the same axis. When high-pressure gas enters the piston sleeve, the gas pressure causes the piston to move upward. As the piston rises, the ejector pin also moves upward along the axial direction along with the piston.

[0043] After molding is complete, high-pressure gas is injected into the piston sleeve, causing the piston to rise. This movement pushes the ejector pin upwards, thus ejecting the molded workpiece from the molding cavity and achieving demolding. This demolding structure utilizes pneumatic power, requiring no manual intervention and enabling automated demolding, reducing operational difficulty and risk.

[0044] Furthermore, one side of the mounting base is provided with a second high-pressure air input interface and a three-way pipe connected to the second high-pressure air input interface. The three-way pipe is respectively connected to pneumatic component one and pneumatic component two.

[0045] The second high-pressure gas input interface provides high-pressure gas, which is distributed to pneumatic assembly one and pneumatic assembly two through a three-way pipe. Since pneumatic assembly one and pneumatic assembly two operate in parallel, the connection between the first locking tongue, the second locking tongue, and the locking groove can be flexibly realized through different operations of the control valves.

[0046] Furthermore, both pneumatic component one and pneumatic component two include a cylinder and a control valve connected to the cylinder.

[0047] The control valve is used to control the flow of gas into the cylinder, thereby regulating the cylinder's operating state. When the control valve is open, high-pressure gas enters the cylinder from the second high-pressure gas input port, pushing the piston inside the cylinder. The cylinder is connected to the first and second locking tongues via a connecting plate. By adjusting the gas flow and pressure, precise control of the cylinder can be achieved, ensuring a tight fit between the locking tongues and the locking groove.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stamping die for manufacturing automotive oil seal caps, comprising a lower die base and an upper die base, characterized in that, The lower mold base includes a base, a fixed frame, and a fixed seat. The base is connected to the fixed frame, and the fixed frame is fixedly connected to the fixed seat. The fixed seat is provided with a mold base self-locking structure and a detachable cavity mold base. The four sides of the cavity mold base are provided with multiple locking grooves for connecting the mold base self-locking structure. The self-locking structure of the mold base includes a mounting base on a fixed base, and pneumatic component one and pneumatic component two arranged sequentially in the mounting base. The mounting base is provided with a first locking tongue and a second locking tongue. The mounting base is also provided with a channel for the movement of the first locking tongue and the second locking tongue. The first locking tongue is connected to pneumatic component one, and the second locking tongue is connected to pneumatic component two. The first locking tongue and the second locking tongue are respectively connected to the lock groove through pneumatic component one and pneumatic component two.

2. The stamping die for manufacturing automotive oil seal caps according to claim 1, characterized in that: The upper mold base includes a mounting plate and a punch mounted on the mounting plate. The mounting plate is provided with a plurality of guide posts, which are sequentially inserted into a fixed frame and a base. A buffer structure is also provided between the fixed frame and the base.

3. The stamping die for manufacturing automotive oil seal caps according to claim 2, characterized in that: The buffer structure includes several guide rods and springs sleeved on the guide rods. One end of each guide rod is fixedly connected to the base, and the other end of each guide rod is movably inserted into the fixed frame. Each guide rod is distributed around the four sides of the base.

4. The stamping die for manufacturing automotive oil seal caps according to claim 1, characterized in that: The fixed base has an installation groove for installing the die holder. The die holder is fitted into the installation groove and is also connected to the fixed base by bolts. A limiting groove is provided on one side of the installation groove, and the die holder is provided with a limiting block for connecting to the limiting groove.

5. The stamping die for manufacturing automotive oil seal caps according to claim 1, characterized in that: The die holder is provided with a molding cavity and a first high-pressure gas input interface. The bottom of the molding cavity is provided with a demolding structure. The demolding structure includes a piston sleeve and a demolding ejector rod connected to the piston sleeve. The piston sleeve is connected to the first high-pressure gas input interface through a conduit.

6. The stamping die for manufacturing automotive oil seal caps according to claim 5, characterized in that: The piston sleeve is coaxially sleeved on the demolding ejector rod, which is vertically positioned at the bottom of the molding cavity and moves along the axial direction of the piston sleeve.

7. The stamping die for manufacturing automotive oil seal caps according to claim 1, characterized in that: The mounting base is provided with a second high-pressure air input interface and a three-way pipe connected to the second high-pressure air input interface on one side. The three-way pipe is connected to pneumatic component one and pneumatic component two respectively.

8. A stamping die for manufacturing automotive oil seal caps according to claim 1 or 7, characterized in that: Both pneumatic component one and pneumatic component two include a cylinder and a control valve connected to the cylinder.

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