Notch punching die for automobile sealing strip

Abstract

The utility model relates to the technical field of automobile sealing strip punching, in particular to an automobile sealing strip notch punching die which comprises a base, a limiting rod fixed to the upper side of the base, a supporting plate fixed to the top of the limiting rod, an air cylinder fixed to the top of the supporting plate, a lower die fixed to the upper side of the base, and an upper pressing die fixed to the output end of the air cylinder and penetrating through the supporting plate. The upper pressing die comprises a connecting plate, a fixing table is fixed to the lower side of the connecting plate, positioning and pressing structures are arranged at the two ends of the fixing table, each positioning and pressing structure comprises a through hole formed in the upper side of the fixing table, a pressing rod is inserted into the through hole, and a pressing end is fixed to the bottom end of the pressing rod; an ejector rod is fixed to the output end of the telescopic long rod and located at one end of the sealing strip body. The sealing strip positioning device solves the problems that an existing sealing strip punching device is not provided with a sealing strip positioning part, a sealing strip is prone to displacement in the punching process, the punched sealing strip needs to be taken out manually, and machining efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive sealing strip punching, and specifically refers to a notch punching die for automotive sealing strips. Background Technique

[0002] Automotive sealing strips are one of the important components of automobiles, and their sealing performance directly affects the use safety and riding comfort of automobiles; however, at present, the processing of automotive sealing strips usually adopts manual operation methods, and the consistency of punching cannot be guaranteed, which cannot meet the requirements of customers for the assembly performance and sealing performance of notch dimensions, and the processing efficiency is low, resulting in the accumulation of transferred materials;

[0003] In the Chinese utility model patent with the application number: CN202322902277.0, a notch punching die for automotive sealing strips is disclosed, and its structure is as follows: it includes a support frame and a cylinder, a connector, an upper die, a punch fixing plate, a punch and a lower die that are distributed in sequence from top to bottom. The cylinder is fixed at the top of the support frame; the cylinder is connected to the upper die through the connector; the punch fixing plate is fixed on the upper die; the lower die is fixed at the bottom of the support frame; the punch is installed on the punch fixing plate and corresponds to the position of the lower die;

[0004] In this structure, the problem of manual punching is solved through a mechanical stamping structure, and the processing efficiency is improved. However, since there is no component for fixing the position of the sealing strip before punching in this device, during punching, the sealing strip may be displaced, resulting in an offset of the punching position, and after punching, it is necessary to manually take out the punched sealing strip, resulting in a reduction in processing efficiency. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that the existing sealing strip punching equipment does not have a sealing strip positioning component, which is likely to cause displacement of the sealing strip during punching, and it is necessary to manually take out the punched sealing strip, which will reduce the processing efficiency.

[0006] To solve the above problems, the technical solution adopted by the utility model is a notch punching die for automotive sealing strips, which includes a base. A limiting rod is fixed on the upper side of the base, a support plate is fixed at the top of the limiting rod, a cylinder is fixed at the top of the support plate, a lower die is fixed on the upper side of the base, the output end of the cylinder passes through the support plate and is fixed with an upper pressing die. The upper pressing die includes a connecting plate, a fixing table is fixed on the lower side of the connecting plate, positioning and pressing structures are arranged at both ends of the fixing table. The positioning and pressing structure includes a through hole opened on the upper side of the fixing table, a pressing rod is inserted in the through hole, a pressing end is fixed at the bottom end of the pressing rod, telescopic long rods are fixed on the upper side of the base on both sides of the lower die, and a top rod is fixed at the output end of the telescopic long rod.

[0007] As a further solution of the present utility model: a retaining platform is fixedly arranged below the fixing platform at the middle part of the pressure rod, a compression spring is arranged outside the pressure rod between the retaining platform and the fixing platform, a top platform is fixedly arranged at the top of the pressure rod, a limiting platform is fixedly arranged on the upper side of the fixing platform at the through hole, and a tension spring is looped between the top platform and the limiting platform.

[0008] As a further solution of the present utility model: a placement groove is formed on the upper side of the lower die, and a sealing strip body is placed in the placement groove.

[0009] As a further solution of the present utility model: the pressure rod is located above both ends of the sealing strip body, which is convenient for fixing the position of the sealing strip body.

[0010] As a further solution of the present utility model: a stamping knife is fixedly arranged on the lower side of the fixing platform above the sealing strip body, which is convenient for punching the sealing strip body.

[0011] As a further solution of the present utility model: limiting plates are fixedly arranged between two limiting rods at both ends of the connecting plate, which is convenient for ensuring more stability during the punching of the equipment.

[0012] As a further solution of the present utility model: the air cylinder is communicated with an external air pump device, and the telescopic long rod is electrically connected to an external power supply.

[0013] The advantages of the present utility model compared with the prior art are as follows: this patent adds a pressing structure, which can fix the position of the sealing strip body and prevent position deviation during punching; it adds a telescopic long rod and a top rod structure, which can eject the sealing strip body after it is punched, so as to facilitate subsequent punching operations. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is the three-dimensional view of the overall structure in a car sealing strip notch punching die of the present utility model Figure 1 .

[0016] Figure 2 is the three-dimensional view of the overall structure in a car sealing strip notch punching die of the present utility model Figure 2 .

[0017] Figure 3 is the partial structure cross-sectional view in a car sealing strip notch punching die of the present utility model.

[0018] Figure 4 is the enlarged view of the A part structure in a car sealing strip notch punching die of the present utility model.

[0019] In the accompanying drawings:

[0020] 1. Base; 2. Limiting rod; 3. Support plate; 4. Cylinder; 5. Lower die; 6. Connecting plate; 7. Fixed table; 8. Pressing rod; 9. Pressing end; 10. Telescopic long rod; 11. Ejector rod; 12. Pressing spring; 13. Tension spring; 14. Sealing strip body; 15. Stamping knife; 5.1. Placing groove; 7.1. Through hole; 7.2. Limiting table; 8.1. Blocking table; 8.2. Top table. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention provides a technical solution: to solve the existing problems proposed in the background technology.

[0023] Combined with the attached Figures 1-4 , it can be known that the device includes a base 1. A limiting rod 2 is fixed on the upper side of the base 1. A support plate 3 is fixed on the top of the limiting rod 2. A cylinder 4 is fixed on the top of the support plate 3. A lower die 5 is fixed on the upper side of the base 1. The output end of the cylinder 4 passes through the support plate 3 and is fixed with an upper pressing die. The upper pressing die includes a connecting plate 6. A fixed table 7 is fixed on the lower side of the connecting plate 6. Positioning pressing structures are provided at both ends of the fixed table 7 to be able to press the position of the sealing strip body 14. The positioning pressing structure includes a through hole 7.1 opened on the upper side of the fixed table 7. A pressing rod 8 is inserted in the through hole 7.1. A pressing end 9 is fixed at the bottom end of the pressing rod 8. Telescopic long rods 10 are fixed on the upper side of the base 1 on both sides of the lower die 5. An ejector rod 11 is fixed at the output end of the telescopic long rod 10 to facilitate ejecting the sealing strip body 14 out of the placing groove 5.1;

[0024] A placing groove 5.1 is opened on the upper side of the lower die 5. The sealing strip body 14 is placed in the placing groove 5.1; the pressing rod 8 is located above both ends of the sealing strip body 14 to facilitate fixing the position of the sealing strip body 14; a stamping knife 15 is fixed on the lower side of the fixed table 7 above the sealing strip body 14 to facilitate punching the sealing strip body 14; limiting plates are fixed between the two limiting rods 2 at both ends of the connecting plate 6 to facilitate ensuring more stability during the punching of the device; the cylinder 4 is connected to an external air pump device, and the telescopic long rod 10 is electrically connected to an external power source.

[0025] The working principle of this application is as follows: When punching the sealing strip, first place the sealing strip body 14 in the placement groove 5.1, and then start the cylinder 4 to drive the connecting plate 6 to move downward. During the downward movement of the connecting plate 6, the pressing ends 9 will first contact both ends of the sealing strip body 14, thereby pressing it tightly. Then, the stamping knife 15 can punch the positioned sealing strip body 14, effectively preventing the sealing strip body 14 from shifting. After punching, the connecting plate 6 is lifted, and the telescopic long rod 10 will drive the ejector rod 11 to eject the sealing strip body 14 out of the placement groove 5.1, so that the punching of the sealing strip body 14 can be completed;

[0026] When the pressing structure presses, the pressing ends 9 will press the sealing strip body 14. During the downward movement of the connecting plate 6, the pressing spring 12 will be under pressure, and the tension spring 13 will be under tension. After stamping is completed, the pressing spring 12 will release the pressure it receives, causing the pressure rod 8 to move downward along the through hole 7.1, and the tension spring 13 will pull the pressure rod 8 to move it downward, so as to facilitate the pressure rod 8 to return to its initial position for the next positioning and pressing.

[0027] The above describes the present utility model and its implementation manners. Such a description is not restrictive, and what is shown in the drawings is only one of the implementation manners of the present utility model. The actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. An automotive sealing strip notch punching die, comprising a base (1), a limiting rod (2) is fixed on the upper side of the base (1), a support plate (3) is fixed on the top of the limiting rod (2), a cylinder (4) is fixed on the top of the support plate (3), a lower die (5) is fixed on the upper side of the base (1), and it is characterized in that: The output end of the cylinder (4) passes through the support plate (3) and is fixed with an upper pressing die. The upper pressing die includes a connecting plate (6). A fixing table (7) is fixed to the lower side of the connecting plate (6). Positioning and pressing structures are provided at both ends of the fixing table (7). The positioning and pressing structure includes a through hole (7.1) opened on the upper side of the fixing table (7). A pressing rod (8) is inserted into the through hole (7.1). A pressing end (9) is fixed to the bottom end of the pressing rod (8). Telescopic long rods (10) are fixed to the upper side of the base (1) on both sides of the lower die (5). A ejector rod (11) is fixed to the output end of the telescopic long rod (10).

2. The notch punching die for an automotive sealing strip according to claim 1, wherein: A stop table (8.1) is fixed to the middle of the pressing rod (8) below the fixing table (7). A pressing spring (12) is provided outside the pressing rod (8) between the stop table (8.1) and the fixing table (7). A top table (8.2) is fixed to the top of the pressing rod (8). A limiting table (7.2) is fixed to the upper side of the fixing table (7) at the position of the through hole (7.1). A tension spring (13) is looped between the top table (8.2) and the limiting table (7.2).

3. The notching and punching die for automotive sealing strips according to claim 1, wherein: A placing groove (5.1) is opened on the upper side of the lower die (5). A sealing strip body (14) is placed in the placing groove (5.1).

4. The automotive sealing strip notch punching die according to claim 3, characterized in that: The pressing rod (8) is located above both ends of the sealing strip body (14).

5. The automotive sealing strip notch punching die according to claim 3, characterized in that: A punching knife (15) is fixed to the lower side of the fixing table (7) above the sealing strip body (14).

6. The automotive sealing strip notch punching die according to claim 1, characterized in that: Limit plates are fixed between two limiting rods (2) at both ends of the connecting plate (6).

7. The notching and punching die for an automotive sealing strip according to claim 1, wherein: The cylinder (4) is communicated with an external air pump device. The telescopic long rod (10) is electrically connected to an external power supply.

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