Impact test tool for automobile safety air bag

Abstract

The utility model discloses an automobile safety air bag impact test tool, comprising a rigid substrate which is fixedly installed on a test bench backboard and is provided with a metal net installation window at the position of an exhaust hole of a safety air bag; the metal net is arranged in the metal net mounting window; the airbag fixing bracket is arranged on the rigid base plate and is used for fixing a safety airbag on the rigid base plate; and the hammer head is positioned above the rigid base plate and is used for impacting the safety air bag in an impact test. The safety air bag impact test device solves the problem of hole blocking in the impact test of the safety air bag, is convenient to process, low in cost, easy to detach and replace, and suitable for the impact test of various safety air bags with exhaust holes.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive airbag testing equipment, and in particular to an automotive airbag impact testing fixture. Background Technology

[0002] Automotive airbags are a type of safety device in a vehicle's passive restraint system. They deploy instantaneously in the event of a collision to protect the occupants. During airbag development, verification tests are conducted to simulate the airbag's protective effect on occupants during an accident. Linear impact testing is a common test in airbag development; bench impact testing is faster and cheaper than trolley impact testing. The impact test bench is a crucial part of linear impact testing, and its quality directly affects the test results, especially for seat airbag impact testing. The test bench design must fully consider several influencing factors, such as whether the airbag's vent will be blocked and whether the airbag installation is secure.

[0003] See Figure 1 The figure shows an existing automotive airbag impact test fixture. The airbag 20 is fixed on the test bench 10, and the exhaust port 21 of the airbag 20 faces the hammer head 30. During the impact test, the airbag 20 is squeezed by the hammer head 30, and the exhaust port 21 may be blocked by the hammer head 30, affecting the gas discharge from the airbag 20a, and thus affecting the stiffness of the airbag 20a, giving incorrect test data.

[0004] See Figure 2 The figure shows another existing automotive airbag impact test fixture. The airbag 20a is fixed on the test bench 10a, and the exhaust port 21a of the airbag 20a faces the test bench 10a. During the impact test, the airbag 20a is squeezed by the hammer head 30a, and the exhaust port 21a is squeezed onto the test bench 10a and blocked by the test bench 10a. This affects the gas discharge from the airbag 20a, and thus affects the stiffness of the airbag 20a, giving incorrect test data.

[0005] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an automotive airbag impact testing fixture that addresses the shortcomings of the existing technology, especially suitable for impact testing of seat airbags, so as to solve the problem of airbag blockage during testing.

[0007] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0008] A tooling for testing automotive airbag impact, comprising:

[0009] A rigid substrate is fixedly mounted on the back plate of the test bench, and a metal mesh mounting window is formed on the rigid substrate at the position of the airbag's exhaust port.

[0010] The metal mesh is installed within the metal mesh installation window;

[0011] An airbag fixing bracket disposed on the rigid substrate for fixing the airbag to the rigid substrate; and

[0012] A hammerhead, located above the rigid substrate, is used to impact the airbag during an impact test.

[0013] In a preferred embodiment of this utility model, the rigid substrate is a rectangular plate with a substrate mounting through hole at each corner. During installation, a fastening screw is passed through the substrate mounting through hole and screwed into a pre-drilled fixing screw hole on the back plate of the test bench, so that the rigid substrate is fixedly mounted on the back plate of the test bench.

[0014] In a preferred embodiment of this utility model, the substrate mounting through hole is a circular through hole, an elliptical through hole, or a sliding mounting through hole.

[0015] In a preferred embodiment of this utility model, the metal mesh is installed inside the metal mesh installation window by welding or screwing.

[0016] In a preferred embodiment of this utility model, the mesh openings of the metal mesh are square, circular, or rhomboid.

[0017] In a preferred embodiment of this utility model, the airbag fixing bracket has a bracket fixing through hole and an airbag fixing through hole; during installation, the fastening screw is passed through the bracket fixing through hole and screwed into the fixing screw hole reserved on the rigid base plate, so that the airbag fixing bracket is fixedly installed on the rigid base plate; the bolt on the airbag is passed through the airbag fixing through hole on the airbag fixing bracket, thereby fixing the airbag to the airbag fixing bracket.

[0018] In a preferred embodiment of this utility model, the airbag fixing bracket is made of steel or aluminum alloy.

[0019] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model solves the problem of blocked holes in airbags during impact testing, and this utility model is easy to process, low in cost, easy to disassemble and replace, and is applicable to impact testing of various airbags with vent holes. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of an existing automotive airbag impact testing fixture.

[0022] Figure 2 This is a schematic diagram of another existing automotive airbag impact testing fixture.

[0023] Figure 3 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0025] See Figure 3 The figure shows a tooling for testing the impact of an automotive airbag, including a rigid base plate 100, a metal mesh 200, an airbag fixing bracket 300, and a hammer 400.

[0026] A rigid substrate 100 is fixedly mounted on the back plate 10 of the test bench. A metal mesh mounting window 110 is formed on the rigid substrate 100 at the location of the airbag 20's exhaust port 21. The area of ​​the metal mesh mounting window 110 is designed according to the area of ​​the airbag 20's exhaust port 21. Due to the rigid substrate 100's certain thickness, the metal mesh mounting window 110 forms a space that facilitates the airbag 20's exhaust. In this embodiment, the rigid substrate 100 is a rectangular plate made of steel or aluminum alloy. Each corner of the rigid substrate 100 has a substrate mounting through hole 120, which can be a circular through hole, an elliptical through hole, or a sliding mounting through hole. During installation, a fastening screw is passed through the substrate mounting through hole 120 and screwed into the pre-drilled fixing screw hole on the back plate 10 of the test bench, thus fixing the rigid substrate 100 onto the back plate 10 of the test bench.

[0027] The metal mesh 200 is fixedly installed within the metal mesh mounting window 110 of the rigid substrate 100. The mesh openings of the metal mesh 200 are square, round, or diamond-shaped. The metal mesh 200 can be directly welded to the metal mesh mounting window 110 of the rigid substrate 100, or it can be fixed within the metal mesh mounting window 110 of the rigid substrate 100 using clamps and bolts for easy replacement. It can also be inserted into the metal mesh mounting window 110 of the rigid substrate 100 from top to bottom or from left to right for easy replacement. The diameter of the wires in the metal mesh 200 is as small as possible so that even if the exhaust port 21 of the airbag 20 is directly facing the metal wires, it will not affect the gas discharge.

[0028] An airbag fixing bracket 300 is disposed on a rigid base plate 100 and is used to fix the airbag 20 to the rigid base plate 100. The airbag fixing bracket 300 has a bracket fixing through hole 310 and an airbag fixing through hole 320. During installation, a fastening screw is passed through the bracket fixing through hole 310 and screwed into a pre-drilled fixing screw hole on the rigid base plate 100, thereby fixing the airbag fixing bracket 300 to the rigid base plate 100; a bolt on the airbag 20 is passed through the airbag fixing through hole 320 on the airbag fixing bracket 300, thereby fixing the airbag 20 to the airbag fixing bracket 300. In this embodiment, the airbag fixing bracket 300 is preferably made of steel or aluminum alloy.

[0029] The hammer 400 is located above the rigid base plate 100 and is used to impact the airbag 20 during an impact test.

[0030] During impact testing, the automotive airbag impact testing fixture of this invention must be able to securely mount the airbag and withstand the impact of the airbag and the hammer. During the test, as the airbag 20 deploys, the hammer 400 presses against the airbag 20, causing the airbag 20 to adhere tightly to the testing fixture. The area of ​​the testing fixture corresponding to the hammer 400 is rigid, designed to withstand the impact of the hammer 400; while the area facing the airbag 20's exhaust port 21 is covered by a metal mesh 200. This area is not directly impacted by the hammer 400, and the metal mesh 200 is breathable, facilitating the exhaust of the airbag 20's exhaust port 21.

[0031] This invention solves the problem of airbag vent blockage during testing, while also being easy to manufacture and replace, and is suitable for impact testing of various airbags with vents.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for testing the impact of automotive airbags, characterized in that, include: A rigid substrate is fixedly mounted on the back plate of the test bench, and a metal mesh mounting window is formed on the rigid substrate at the position of the airbag's exhaust port. The metal mesh is installed within the metal mesh installation window; An airbag fixing bracket is disposed on the rigid base plate for fixing the airbag on the rigid base plate. as well as A hammerhead, located above the rigid substrate, is used to impact the airbag during an impact test.

2. The automotive airbag impact testing fixture as described in claim 1, characterized in that, The rigid substrate is a rectangular plate with a mounting through hole at each corner. During installation, a fastening screw is passed through the mounting through hole and screwed into the pre-drilled fixing screw hole on the back plate of the test bench, so that the rigid substrate is fixedly mounted on the back plate of the test bench.

3. The automotive airbag impact testing fixture as described in claim 2, characterized in that, The substrate mounting through-hole can be a circular through-hole, an elliptical through-hole, or a sliding mounting through-hole.

4. The automotive airbag impact testing fixture as described in claim 1, characterized in that, The metal mesh is installed inside the metal mesh installation window by welding or screwing.

5. The automotive airbag impact testing fixture as described in claim 4, characterized in that, The mesh openings of the metal mesh are square, round, or diamond-shaped.

6. The automotive airbag impact testing fixture as described in claim 1, characterized in that, The airbag fixing bracket has a bracket fixing through hole and an airbag fixing through hole. During installation, the fastening screw is passed through the bracket fixing through hole and screwed into the fixing screw hole reserved on the rigid base plate, so that the airbag fixing bracket is fixedly installed on the rigid base plate. The bolt on the airbag is passed through the airbag fixing through hole on the airbag fixing bracket, thereby fixing the airbag to the airbag fixing bracket.

7. The automotive airbag impact testing fixture as described in claim 6, characterized in that, The airbag fixation bracket is made of steel or aluminum alloy.

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