Composite cylinder gasket flanging die

Abstract

The utility model provides a composite cylinder gasket flanging die, and relates to the technical field of flanging dies. A composite cylinder gasket flanging die comprises an upper die plate, a lower die plate, a positioning block and a limiting assembly, the positioning block is arranged on the face, facing the upper die plate, of the lower die plate, a plurality of connecting grooves are formed in the side face of the positioning block, the limiting assembly is connected with the inner walls of the connecting grooves, the outer wall of the positioning block is attached to the inner wall of a protective ring, and the outer wall of the limiting assembly is connected with the inner wall of the protective ring. The positioning block and the cylinder opening are correspondingly arranged; the limiting assembly comprises a connecting frame, a spring and a connecting piece, the connecting frame is connected with the inner wall of the connecting groove, the spring is arranged in the connecting frame, and the two ends of the spring are fixedly connected with the inner wall of the connecting frame and the connecting piece respectively. The flanging device has the advantages that the stainless steel protective ring with the warping phenomenon can be effectively pressed, the position of the protective ring can be further limited, the flatness of the protective ring is effectively guaranteed, and then the effect that the flanging procedure is accurate is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a flanging die, in particular to a composite cylinder gasket flanging die. BACKGROUND

[0002] As a key component, the composite cylinder gasket is widely used in various engines, and its main function is to form a seal between the cylinder cover and the cylinder body to prevent gas and liquid leakage and ensure the normal operation of the engine. With the rapid development and technological progress of the automobile industry, the manufacturing process of the composite cylinder gasket is also being continuously optimized. The retainer is a circular undercut with a certain width arranged around the cylinder port of the cylinder gasket, which can serve as a reinforcing part of the cylinder gasket and is mainly used to improve the durability and sealing performance of the cylinder gasket at the cylinder port. The retainer is usually flanged using a flanging die to combine the retainer and the cylinder gasket.

[0003] In the existing production of the composite cylinder gasket, in order to ensure the sealing performance of the retainer, the retainer will first be subjected to vertical edge processing before the flanging process, which may cause the retainer to warp. This makes it difficult to position and flatten the retainer during the flanging process. In general, for iron retainers, the retainer can be normally produced because there is a magnet under the retainer. However, for stainless steel retainers, the retainer cannot be positioned and placed due to the lack of magnetism, which affects the efficiency of the flanging process. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problem that the stainless steel retainer with warping cannot be positioned and placed due to the lack of magnetism, which affects the efficiency of the flanging process. The application provides a composite cylinder gasket flanging die.

[0005] The application provides a composite cylinder gasket flanging die, which adopts the following technical scheme:

[0006] The composite cylinder gasket flanging die comprises an upper die plate, a lower die plate, a positioning block and a limiting assembly. The positioning block is arranged on one side of the lower die plate facing the upper die plate. A plurality of connecting grooves are formed in the side surface of the positioning block. The limiting assembly is connected with the inner wall of the connecting groove. The outer wall of the positioning block is attached to the inner wall of the retainer, and the positioning block is arranged corresponding to the cylinder port.

[0007] The limiting assembly comprises a connecting frame, a spring and a connecting piece. The connecting frame is connected with the inner wall of the connecting groove. The spring is arranged in the connecting frame. The two ends of the spring are fixedly connected with the inner wall of the connecting frame and the connecting piece, respectively. The connecting piece abuts against the end surface of the retainer.

[0008] By adopting the technical scheme, the design of the connecting groove on the positioning block and the limiting assembly ensures that the spring can freely stretch and contract in the connecting frame, and the connecting piece can move flexibly under the action of the spring, so that the stainless steel retainer ring that has the warping phenomenon can be effectively compressed, the position of the retainer ring can be further limited, the flatness of the retainer ring is effectively ensured, and then the accuracy of the flanging process is ensured. At the same time, the design simplifies the positioning process of the retainer ring, improves the production efficiency, and reduces the operation time.

[0009] Preferably, the inner wall of the connecting groove is provided with a thread, and the outer wall of the connecting frame is fixed with a thread strip matched with the thread.

[0010] By adopting the technical scheme, the installation and disassembly of the limiting assembly are facilitated, and the convenience of maintenance and adjustment is improved. At the same time, the threaded connection mode enhances the stability of the structure, ensures that the connecting frame will not loosen during the flanging process, and ensures the consistency and reliability of the flanging quality.

[0011] Preferably, the guiding assembly is arranged between the upper die plate and the lower die plate.

[0012] By adopting the technical scheme, the arrangement of the guiding assembly helps to ensure the accurate alignment between the upper die plate and the lower die plate, effectively reduces the processing errors caused by misalignment, and improves the working accuracy and stability of the flanging die.

[0013] Preferably, the guiding assembly comprises a guiding rod, the guiding rod is fixedly connected with the lower die plate, the upper die plate comprises a pressing block, one side of the pressing block facing the lower die plate is provided with a first guiding hole, one side of the positioning block facing the upper die plate is provided with a second guiding hole, the axis of the second guiding hole coincides with the axis of the first guiding hole, and the end of the guiding rod is sequentially arranged in the first positioning hole and the second positioning hole.

[0014] By adopting the technical scheme, the guiding rod is fixedly connected with the lower die plate, and the axes of the first guiding hole and the second guiding hole respectively arranged on the upper die plate and the positioning block coincide, so that when the upper die plate moves in the direction of the lower die plate under stress, the guiding rod can smoothly pass through the first guiding hole and the second guiding hole, thereby ensuring the accurate positioning of the upper and lower die plates during movement. This design not only reduces the error during die working, but also improves the production efficiency.

[0015] Preferably, the positioning assembly is also arranged between the upper die plate and the lower die plate.

[0016] By adopting the technical scheme, the positioning assembly is arranged between the upper die plate and the lower die plate, which ensures the accurate alignment between the upper and lower die plates, improves the working accuracy and stability of the die, avoids product quality problems caused by position deviation, and further improves the qualified rate of products.

[0017] Preferably, the positioning assembly comprises a positioning rod, which is fixedly connected to one side of the lower die plate facing the upper die plate, and the upper die plate is provided with a positioning hole for the positioning rod to slide.

[0018] By adopting the above technical scheme, the positioning rod is fixedly connected to the lower die plate, ensuring the accurate relative position between the upper and lower die plates and avoiding processing errors caused by position deviation. Meanwhile, the positioning hole on the upper die plate allows the positioning rod to slide inside, ensuring the smooth operation of the die during work and improving the processing precision and efficiency. The design of the positioning rod enables the retainer ring to be positioned more stably during flanging, reducing the time for manual adjustment and further improving the production efficiency.

[0019] Preferably, the lower die plate comprises a bottom plate, a connecting plate and a plurality of elastic members, both ends of the elastic members are connected to the positioning block and the bottom plate respectively, the connecting plate is connected to the bottom plate, one side of the connecting plate facing the upper die plate is provided with a connecting hole, and the positioning block is coincident with the axis of the connecting hole.

[0020] By adopting the above technical scheme, the plurality of elastic members between the bottom plate and the connecting plate can provide stable support force during flanging, ensuring that the connecting plate can remain stable when subjected to pressure and avoiding deformation problems caused by uneven stress. Meanwhile, the design of the elastic members can also effectively absorb and disperse the impact force of the upper die during flanging, reducing the wear of the die and prolonging the service life.

[0021] Preferably, the side of the pressing block facing the lower die plate is provided with a guide angle.

[0022] By adopting the above technical scheme, the side of the pressing block facing the lower die plate is provided with a guide angle, enabling the pressing block to more smoothly contact the retainer ring during the descending process, avoiding damage or deformation caused by sharp edges, and thus improving the service life and working stability of the die.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting the limiting assembly on the positioning block of the lower die plate, the stainless steel retainer ring can be effectively pressed to keep it flat, thereby effectively solving the problem of inaccuracy in positioning the retainer ring during the flanging process caused by the warping of the stainless steel retainer ring after the vertical edge processing, and improving the working efficiency of the flanging process;

[0025] 2. The spring and connecting piece effectively simplify the placement process of the retainer ring, reduce the time for manual adjustment, improve the production efficiency, and reduce the production cost;

[0026] 3. Precise positioning of the retainer ring by cooperation of the positioning rod and the positioning hole ensures that it will not be displaced during the flanging process, improving the quality consistency of the product. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective structural schematic diagram of an embodiment of the present application;

[0028] Figure 2 is a sectional structural schematic diagram of a limiting assembly of an embodiment of the present application;

[0029] Figure 3 is a perspective structural schematic diagram of an upper die plate of an embodiment of the present application;

[0030] Figure 4 is a structural schematic diagram of a lower die plate of an embodiment of the present application;

[0031] Figure 5 is a partial structural schematic diagram of a guide assembly of an embodiment of the present application.

[0032] Reference signs: 1, upper die plate; 11, guide plate; 12, moving hole; 13, connecting rod; 14, pressing block; 15, guide angle; 16, through hole; 2, lower die plate; 21, bottom plate; 22, connecting plate; 23, elastic member; 24, connecting hole; 3, positioning block; 4, limiting assembly; 41, connecting frame; 42, spring; 43, connecting member; 5, guide assembly; 51, first guide hole; 52, guide rod; 53, second guide hole; 6, positioning assembly; 61, positioning rod; 62, positioning hole; 7, connecting groove. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying Figures 1-5 The present application will be further described in detail.

[0034] Embodiment:

[0035] An embodiment of the present application provides a composite cylinder gasket flanging die.

[0036] Reference Figure 1 and Figure 2 The composite cylinder gasket flanging die comprises an upper die plate 1, a lower die plate 2, a positioning block 3, a limiting assembly 4, a guide assembly 5, and a positioning assembly 6.

[0037] The limiting assembly 4 comprises a connecting frame 41, a spring 42 and a connecting piece 43. The positioning block 3 is arranged on the side of the lower die plate 2 facing the upper die plate 1. A plurality of connecting grooves 7 are formed in the positioning block 3. The inner wall of the connecting groove 7 is provided with a thread. The outer wall of the connecting frame 41 is fixedly provided with a thread strip matched with the thread. The connecting frame 41 can be made of aluminum alloy material, which is light in weight and high in strength, and is suitable for frequent opening and closing of the mold. The spring 42 is arranged in the connecting frame 41. The two ends of the spring 42 are fixedly connected with the inner wall of the connecting frame 41 and the connecting piece 43, respectively. The spring 42 can be a high-strength spring, which has good elasticity and durability, and can maintain stable elastic force for a long time. The connecting piece 43 can be a spring ball.

[0038] By screwing the connecting frame 41 into the connecting groove 7 along the thread, the connecting frame 41 can be more closely fitted in the connecting groove 7, enhancing the stability of the entire limiting assembly 4, further simplifying the installation process of the limiting assembly 4 and the positioning block 3, facilitating subsequent installation, replacement and maintenance, and thereby improving the service life of the mold.

[0039] With reference to Figure 3 and Figure 4 The upper die plate 1 comprises a support plate 17. The support plate 17 is provided with a guide plate 11. A plurality of moving holes 12 are formed in the guide plate 11. A connecting rod 13 connected with the upper die plate 1 is arranged in the moving hole 12. The guide plate 11 is arranged on the upper die plate 1 in the vertical direction through the connecting rod 13. The upper die plate 1 is further provided with a pressing block 14. An angle guide 15 is formed in the peripheral side of the side of the pressing block 14 facing the lower die plate 2. A through hole 16 is formed in the guide plate 11 for the pressing block 14 to pass through. A first guide hole 51 is formed in the side of the pressing block 14 facing the lower die plate 2. When the upper and lower die plates 2 are closed, the pressing block 14 is in close contact with the positioning block 3.

[0040] The lower die plate 2 comprises a bottom plate 21, a connecting plate 22 and a plurality of elastic members 23. The composite cylinder gasket is arranged on the connecting plate 22. The elastic member 23 can be a spring. The elastic member 23 can be made of rubber material, which has good elasticity and damping effect, and can absorb part of the impact force during the opening and closing of the mold, reducing the damage to the mold. The two ends of the elastic member 23 are connected with the positioning block 3 and the bottom plate 21, respectively. The connecting plate 22 is connected with the bottom plate 21. The connecting plate 22 is provided with a connecting hole 24 on the side facing the upper die plate 1. The positioning block 3 is coaxial with the axis of the connecting hole 24.

[0041] First, the stainless steel retainer along the positioning block 3 of the outer wall to its bottom end and the connecting plate 22 on the lower die plate 2 of the process, the spring 42 in the limiting component 4 will be automatically stretched, through the connecting piece 43 will be retainer side compression, can be convenient and efficient for the positioning of stainless steel retainer, and then guarantee the retainer in the subsequent with the composite cylinder liner flanging process positioning accurate, effectively solve the stainless steel retainer in the flanging process due to warping caused by positioning difficult problem, facilitate the subsequent flanging process processing, can further improve the production efficiency and product quality.

[0042] Reference Figure 4 And Figure 5 The guide assembly 5 includes a guide rod 52, the guide rod 52 is fixedly connected to the side of the connecting plate 22 facing the upper die plate 1, the side of the positioning block 3 facing the upper die plate 1 is provided with a second guide hole 53, the axis of the second guide hole 53 coincides with the axis of the first guide hole 51, and the end of the guide rod 52 is sequentially provided in the first guide hole 51 and the second guide hole 53. The guide rod 52 can be made of high-strength steel material, has good rigidity and wear resistance, and can maintain the accuracy of the guide in multiple uses.

[0043] Reference Figure 3 And Figure 4 The positioning assembly 6 includes a positioning rod 61, the positioning rod 61 is fixedly connected to the side of the connecting plate 22 facing the upper die plate 1, and the positioning rod 61 has multiple groups, which are located at the edges of the connecting plate 22. The side of the upper die plate 1 facing the lower die plate 2 is provided with a positioning hole 62 for the sliding of the positioning rod 61. The positioning rod 61 can be made of stainless steel material, has good corrosion resistance and strength.

[0044] When the stainless steel retainer moves along the positioning block 3 and is positioned by the limiting assembly 4, because the positioning block 3 is correspondingly arranged with the cylinder port, the stainless steel retainer can be attached to the composite cylinder liner located on the connecting plate 22. At this time, the relative position of the composite cylinder liner and the retainer is determined, and the die can be closed by the stamping machine. At this time, the guide rod 52 on the lower die plate 2 will pass through the first guide hole 51, so that the upper die plate 1 and the lower die plate 2 always remain vertically aligned, reducing the situation that the flanging is poor due to position deviation. The positioning rod 61 will also be inserted into the positioning hole 62, further ensuring that the stainless steel retainer will not move horizontally during the flanging process, so that the vertical edge of the retainer can abut on the guide angle 15 of the pressing block 14 and be folded. At the same time, when the mold is used, the elastic member 23 can also absorb part of the impact force, reducing the pressure on the lower die plate 2, thereby prolonging the service life of the mold.

[0045] The implementation principle of the composite cylinder liner flanging die in the embodiment of the application is as follows:

[0046] The composite cylinder gasket flanging die realizes quick and accurate positioning of the stainless steel retainer ring through the limiting assembly 4. Through the limiting assembly 4, the positioning process of the retainer ring is simplified by utilizing screwing and spring 42 automatic stretching, effectively dealing with the warping problem. In the flanging process, the guiding assembly 5 ensures that the die remains vertically aligned when flanging, reducing defective products. At the same time, the positioning assembly 6 reduces the possibility of horizontal movement of the retainer ring and the composite cylinder gasket during flanging, ensuring accuracy. The elastic member 23 absorbs impact force during die opening and closing, reduces damage, and prolongs service life. The overall design improves flanging efficiency and product quality, making the flanging process of the stainless steel retainer ring and the composite cylinder gasket smoother and more reliable.

[0047] The above are preferred embodiments of the present application, not to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A composite cylinder head gasket flanging die characterized by, The utility model relates to a mould positioning device, including: Upper die plate (1), lower die plate (2), positioning block (3) and limiting component (4), positioning block (3) is located in the one side of lower die plate (2) towards upper die plate (1), the side of positioning block (3) is equipped with a plurality of connecting groove (7), limiting component (4) is connected with the inner wall of connecting groove (7), the outer wall of positioning block (3) is attached with the inner wall of retainer, and positioning block (3) is correspondingly arranged with cylinder mouth; The limiting component (4) includes connecting frame (41), spring (42) and connecting piece (43), the inner wall of connecting frame (41) is connected with the connecting groove (7), the spring (42) is located in the connecting frame (41), the both ends of spring (42) are fixedly connected with the inner wall of connecting frame (41) and connecting piece (43), and the end surface of connecting piece (43) abuts with the retainer.

2. The composite cylinder head gasket flanging die of claim 1 wherein, The inner wall of connecting groove (7) is equipped with screw thread, and the outer wall of connecting frame (41) is fixed with the screw thread bar matched with screw thread.

3. The composite cylinder head gasket flanging die of claim 2 wherein, It also includes guiding assembly (5), and the guiding assembly (5) is arranged between the upper die plate (1) and the lower die plate (2).

4. The composite cylinder head gasket flanging die of claim 3 wherein, The guiding assembly (5) includes guiding rod (52), the guiding rod (52) is fixedly connected with the lower die plate (2), the upper die plate (1) includes pressing block (14), the first guide hole (51) is formed in the one side of pressing block (14) towards the lower die plate (2), the second guide hole (53) is formed in the one side of positioning block (3) towards the upper die plate (1), the axis of second guide hole (53) coincides with the axis of first guide hole (51), and the end of guiding rod (52) is sequentially arranged in second guide hole (53) and first guide hole (51).

5. The composite cylinder head gasket flanging die of claim 4 wherein, It also includes positioning assembly (6), and the positioning assembly (6) is also arranged between the upper die plate (1) and the lower die plate (2).

6. The composite cylinder head gasket flanging die of claim 5 wherein, The positioning assembly (6) includes positioning rod (61), the one side of positioning rod (61) is fixedly connected with the lower die plate (2) towards the upper die plate (1), and the positioning hole (62) is formed in the one side of upper die plate (1) towards the lower die plate (2) for the sliding of positioning rod (61).

7. The composite cylinder head gasket flanging die of claim 1 wherein, The lower die plate (2) includes bottom plate (21), connecting plate (22) and a plurality of elastic members (23), the both ends of elastic member (23) are connected with positioning block (3) and bottom plate (21) respectively, the connecting plate (22) is connected with bottom plate (21), the connecting hole (24) is formed in the one side of connecting plate (22) towards the upper die plate (1), and the axis of positioning block (3) coincides with the connecting hole (24).

8. The composite cylinder head gasket flanging die of claim 4 wherein, The circumferential side of the one side of pressing block (14) towards the lower die plate (2) is equipped with guide angle (15).

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