Device for punching side wall of automobile safety air bag shell

Abstract

The utility model discloses a device for punching the side wall of an automobile safety air bag shell, which belongs to the technical field of automobile part processing and comprises a fixing plate, four groups of limiting rods and fixing rods are fixedly mounted at the top of the fixing plate, a first moving plate and a second moving plate are mounted on the outer sides of the four groups of limiting rods in a sliding manner; an L-shaped column is fixedly installed on one side of the fixed plate, an air cylinder is fixedly installed on the top of the L-shaped column, and the top of the first movable plate is fixedly installed at the output end of the air cylinder, so that the punching precision and the quality stability of each time of punching can be guaranteed, the produced safety airbag shell has high consistency in the side wall punching quality, the overall quality of a product is improved, and the production efficiency is improved. Compared with the prior art, stable and reliable performance of the automobile safety air bag in actual use is facilitated, positioning error accumulation possibly caused by respective punching is avoided, the relative position precision of punched holes in the two sides is guaranteed, the size, shape and position of the punched holes are more accurate, and the consistency and quality stability of products are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a device for punching holes in the side wall of an automotive airbag housing. Background Technology

[0002] With the continued growth of global car ownership and increasing public awareness of vehicle safety, governments and automotive industry associations worldwide are constantly developing and updating increasingly stringent automotive safety standards. As a crucial safety component, the manufacturing processes and quality requirements for airbags are also continuously being upgraded. This necessitates that automotive component manufacturers adopt more advanced and precise sidewall punching technologies to ensure that the quality and performance of airbag housings meet high standards, thereby satisfying market demands for safer vehicles.

[0003] Existing devices for punching sidewalls of automotive airbag housings mostly employ two punching operations, requiring repositioning for each punch. Even with high positioning accuracy, the two positioning operations inevitably accumulate errors, affecting the relative positional accuracy of the punching. Inability to punch synchronously means that punching operations must be performed on both sides of the airbag housing's sidewall separately, increasing the number of steps and extending the processing time. Therefore, we propose a device for punching sidewalls of automotive airbag housings to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a device for punching holes in the sidewalls of automotive airbag housings, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An apparatus for punching sidewalls of an automotive airbag housing includes: a fixed plate; four sets of limiting rods and a fixing rod are fixedly mounted on the top of the fixed plate; a movable plate one and a movable plate two are slidably mounted on the outer sides of the four sets of limiting rods; an L-shaped column is fixedly mounted on one side of the fixed plate; a cylinder is fixedly mounted on the top of the L-shaped column; the top of the movable plate one is fixedly mounted on the output end of the cylinder; an upper mold is fixedly mounted on the bottom of the movable plate one; the inner wall of the upper mold abuts against the automotive airbag housing body; a lower mold is fixedly mounted on the top of the movable plate two; two sets of inclined blocks are slidably mounted on the top inner wall of the lower mold; a punching mold is fixedly mounted on one side of each of the two sets of inclined blocks; a wedge is fixedly mounted on the top of the fixing rods; and the two sets of inclined blocks slidably abut against both sides of the wedge.

[0007] Preferably, four sets of lifting rods and four sets of return springs are fixedly installed on the top of the fixed plate. The tops of the four sets of lifting rods and four sets of return springs are fixedly installed on the bottom of the movable plate. A top rod and a guide plate are slidably installed inside the lower mold. A return spring is fixedly installed on the bottom of the guide plate. The top of the top rod is fixedly installed on the top block.

[0008] Preferably, the top inner wall of the lower mold is provided with a T-slot 1, the two sets of inclined blocks are slidably installed in the T-slot 1, the two sides of the wedge are provided with T-slot 2, one side of the two sets of inclined blocks is slidably installed in the corresponding T-slot 2, and the movable plate 2 is slidably installed on the outside of the fixed rod.

[0009] Preferably, both the first and second movable plates have four sets of sliding holes inside, and the outer sides of the four sets of limiting rods are slidably installed in the corresponding sliding holes.

[0010] Preferably, the lower mold has a guide groove inside, the guide plate is slidably installed in the corresponding guide groove, and one end of the second reset spring is fixedly installed on one side of the guide groove.

[0011] Preferably, the top of the lower mold has a snap-fit ​​groove, and the top block is movably snapped into the snap-fit ​​groove.

[0012] In this utility model, the device for punching the side wall of an automotive airbag housing is provided with an automotive airbag housing body, a top block, a top rod, a guide plate, a snap-fit ​​groove, a guide groove and a return spring, thereby enabling rapid demolding of the automotive airbag housing body after punching.

[0013] This utility model has a reasonable structural design. A cylinder drives a movable plate and an upper mold to move under the constraint of four sets of limiting rods. This allows the upper mold to engage with the airbag housing and the lower mold, thereby driving a movable plate to move under the constraint of the four sets of limiting rods. This causes the four sets of return springs to retract with the lifting rod. The movable plate then moves downwards outside the fixed rod, causing the wedges to move upwards relative to each other. Furthermore, the two sets of inclined blocks abut against the T-slots and move relative to each other under the constraint of the T-slots, simultaneously driving the corresponding punching dies to punch the sidewalls of the airbag housing. The punching process, through the elastic force of the return spring, resets the moving plate, the two sets of inclined blocks, and the corresponding punching dies. This device ensures the accuracy and quality stability of each punching operation, resulting in a high degree of consistency in the quality of the side wall punching of the produced airbag housings. This improves the overall quality of the product and contributes to the stable and reliable performance of automotive airbags in actual use. It also avoids the accumulation of positioning errors that may occur from separate punching, ensures the relative positional accuracy of the punching on both sides, and makes the size, shape, and position of the punching more accurate, thus improving the consistency and quality stability of the product. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a device for punching sidewalls of an automotive airbag housing, as proposed in this utility model.

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a device for punching sidewalls of an automotive airbag housing according to the present invention.

[0016] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0017] Figure 4 for Figure 2 A magnified view of part B in the middle section.

[0018] In the diagram: 1. Fixed plate; 2. L-pillar; 3. Cylinder; 4. Moving plate one; 5. Upper mold; 6. Moving plate two; 7. Car airbag housing body; 8. Lower mold; 9. Lifting rod; 10. Return spring one; 11. Limiting rod; 12. Fixed rod; 13. Wedge block; 14. Inclined block; 15. Punching mold; 16. T-slot one; 17. Top block; 18. Guide plate; 19. Return spring two; 20. Guide groove; 21. Top rod; 22. Snap-fit ​​groove; 23. T-slot two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4 An apparatus for punching sidewalls of an automotive airbag housing includes: a fixed plate 1; four sets of limiting rods 11 and fixed rods 12 are fixedly mounted on the top of the fixed plate 1; a movable plate 4 and a movable plate 6 are slidably mounted on the outer sides of the four sets of limiting rods 11; an L-pillar 2 is fixedly mounted on one side of the fixed plate 1; a cylinder 3 is fixedly mounted on the top of the L-pillar 2; the top of the movable plate 4 is fixedly mounted on the output end of the cylinder 3; an upper mold 5 is fixedly mounted on the bottom of the movable plate 4; the inner wall of the upper mold 5 abuts against the automotive airbag housing body 7; a lower mold 8 is fixedly mounted on the top of the movable plate 6; two sets of inclined blocks 14 are slidably mounted on the top inner wall of the lower mold 8; a punching mold 15 is fixedly mounted on one side of each of the two sets of inclined blocks 14; a wedge 13 is fixedly mounted on the top of the fixed rods 12; and the two sets of inclined blocks 14 slidably abut against both sides of the wedge 13.

[0021] In this embodiment, four sets of lifting rods 9 and four sets of return springs 10 are fixedly installed on the top of the fixed plate 1. The tops of the four sets of lifting rods 9 and four sets of return springs 10 are fixedly installed on the bottom of the moving plate 2 6. The ejector rod 21 and guide plate 18 are slidably installed inside the lower mold 8. The bottom of the guide plate 18 is fixedly installed with a return spring 2 19. The top of the ejector rod 21 is fixedly installed on the top block 17, which reduces demolding time and improves production cycle time.

[0022] In this embodiment, a T-slot 16 is provided on the top inner wall of the lower mold 8, and two sets of inclined blocks 14 are slidably installed in the T-slot 16. T-slots 23 are provided on both sides of the wedge block 13, and one side of the two sets of inclined blocks 14 is slidably installed in the corresponding T-slots 23. The movable plate 26 is slidably installed on the outside of the fixed rod 12 to avoid the cumulative error caused by punching in multiple times and improve product quality.

[0023] In this embodiment, both the first movable plate 4 and the second movable plate 6 have four sets of sliding holes inside. The outer sides of the four sets of limiting rods 11 are slidably installed in the corresponding sliding holes to ensure that the punching action is carried out vertically and stably, thereby improving the punching position accuracy.

[0024] In this embodiment, a guide groove 20 is provided inside the lower mold 8, and the guide plate 18 is slidably installed in the corresponding guide groove 20. One end of the reset spring 19 is fixedly installed on one side of the guide groove 20 to prevent the top block 17 from tilting or jamming when it lifts the airbag housing body 7, thus ensuring quick and damage-free demolding.

[0025] In this embodiment, the top of the lower mold 8 is provided with a snap-fit ​​groove 22, and the top block 17 is movably snapped into the snap-fit ​​groove 22 to ensure the consistency and timeliness of the demolding action.

[0026] In this embodiment, during use, the airbag housing 7 is placed on the top block 17 and the lower mold 8. The cylinder 3 is activated to move the moving plate 4 and the upper mold 5 under the constraint of the four sets of limiting rods 11. The airbag housing 7 then moves downward against the top block 17, which enters the locking groove 22. This causes the push rod 21 to move the guide plate 18 downward within the guide groove 20. The return spring 19 contracts, causing the inner wall of the airbag housing 7 to abut against the outer side of the lower mold 8. Pressure is then applied to the airbag housing 7, causing the lower mold 8 and the moving plate 6 to move downward. The moving plate 6 then moves downward under the constraint of the four sets of limiting rods 11. The four sets of lifting rods 9 and the corresponding return springs 10 contract. The cylinder 3 retracts, and the fixed rod 12 drives the wedge block 13 to move upward relative to each other. The wedge block 13 and the inclined block 14 are provided with a T-slot 23. Under the restriction of the T-slot 16, the two sets of inclined blocks 14 move away from each other, thereby driving the corresponding punching mold 15 to punch the side wall of the car airbag housing body 7. After punching, the cylinder 3 drives the moving plate 4 to move upward. Under the elastic force of the return spring 10, the lifting rod 9, the moving plate 6, the wedge block 13, the two sets of wedge blocks 13 and the corresponding punching mold 15 are reset. Then, under the elastic force of the return spring 19, the guide plate 18 drives the top rod 21 and the top block 17 to reset, thereby demolding the car airbag housing body 7.

[0027] The present invention provides a detailed description of a device for punching side walls of automotive airbag housings. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are only intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An apparatus for punching holes in the sidewalls of an automotive airbag housing, characterized in that, include: A fixed plate (1) is provided, on the top of which four sets of limiting rods (11) and fixed rods (12) are fixedly installed. A movable plate one (4) and a movable plate two (6) are slidably installed on the outer side of the four sets of limiting rods (11). An L-post (2) is fixedly installed on one side of the fixed plate (1). A cylinder (3) is fixedly installed on the top of the L-post (2). The top of the movable plate one (4) is fixedly installed on the output end of the cylinder (3). The bottom of the movable plate one (4) is fixedly installed on the output end of the cylinder (3). There is an upper mold (5), the inner wall of which abuts against the car airbag housing body (7). The top of the movable plate (6) is fixedly installed with a lower mold (8). The top inner wall of the lower mold (8) is slidably installed with two sets of inclined blocks (14). A punching mold (15) is fixedly installed on one side of each of the two sets of inclined blocks (14). A wedge (13) is fixedly installed on the top of the fixed rod (12). The two sets of inclined blocks (14) slide against the two sides of the wedge (13).

2. The apparatus for punching sidewalls of an automotive airbag housing according to claim 1, characterized in that, The top of the fixed plate (1) is fixedly installed with four sets of lifting rods (9) and four sets of return springs (10). The tops of the four sets of lifting rods (9) and four sets of return springs (10) are fixedly installed at the bottom of the moving plate (6). The lower mold (8) is slidably installed with a top rod (21) and a guide plate (18). The bottom of the guide plate (18) is fixedly installed with a return spring (19). The top of the top rod (21) is fixedly installed on the top block (17).

3. The apparatus for punching sidewalls of an automotive airbag housing according to claim 1, characterized in that, The upper inner wall of the lower mold (8) is provided with a T-shaped groove (16), and two sets of inclined blocks (14) are slidably installed in the T-shaped groove (16). T-shaped grooves (23) are provided on both sides of the wedge block (13), and one side of the two sets of inclined blocks (14) is slidably installed in the corresponding T-shaped groove (23). The moving plate (6) is slidably installed on the outside of the fixed rod (12).

4. The apparatus for punching sidewalls of an automotive airbag housing according to claim 1, characterized in that, Both the first movable plate (4) and the second movable plate (6) have four sets of sliding holes inside, and the outer sides of the four sets of limiting rods (11) are slidably installed in the corresponding sliding holes.

5. The apparatus for punching sidewalls of an automotive airbag housing according to claim 2, characterized in that, The lower mold (8) has a guide groove (20) inside, the guide plate (18) is slidably installed in the corresponding guide groove (20), and one end of the reset spring (19) is fixedly installed on one side of the guide groove (20).

6. The apparatus for punching sidewalls of an automotive airbag housing according to claim 2, characterized in that, The top of the lower mold (8) is provided with a snap-fit ​​groove (22), and the top block (17) is movably snapped into the snap-fit ​​groove (22).

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