Tool for testing modular explosion-proof material

Abstract

The invention discloses a modularized explosion-proof material testing tool, and belongs to the technical field of automobiles, the modularized explosion-proof material testing tool comprises at least one basic module, a plurality of basic modules are connected, and a single part material explosion-proof test is carried out or the explosion-proof performance of a plurality of part materials is simultaneously detected in one test; wherein the basic module comprises a fixed frame, a detachable supporting column and an anti-impact structure bolt; the multiple fixing frames are in threaded connection through the detachable supporting columns and the anti-impact structure bolts. The tool for the test can meet the requirement that explosion-proof tests can be carried out on vehicle types of various qualities by using the same tool and bolts, multi-part material tests can be completed through one-time tests according to requirements, and the test cost and the test period are greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to a modular tooling for testing explosion-proof materials. Background Art

[0002] In order to verify the explosion-proof performance of special vehicles such as bulletproof vehicles, cash transporters, and armored vehicles, it is necessary to conduct explosion-proof performance tests on special vehicles before mass production of the vehicles. Due to the high cost of special vehicles, it is necessary to fully verify the special explosion-proof performance of steel plates and other materials before vehicle preparation. In order to make the material test as close as possible to the actual vehicle application scenario and the special test conditions of the whole vehicle, the preparation and processing of the materials needs to be as close as possible to the actual application parts and assemblies of the vehicle, and the test conditions should also be the same as the special performance test conditions of the whole vehicle.

[0003] At present, the material explosion-proof test mainly simulates the actual explosion-proof situation faced by the vehicle. The tooling is mainly a simple steel frame. The steel plate is fixed on the steel frame by screwing, and the grenade is placed under or below the steel plate for special explosion-proof performance test. However, this type of tooling has the following problems:

[0004] 1. The overall mass of the steel frame and steel plate is too light compared to the actual vehicle, and they often fly away during explosions, thereby converting the impact kinetic energy into potential energy, reducing the impact work received by the material, and possibly resulting in a situation where there is no problem in the material test but the vehicle test fails;

[0005] Second, if the steel frame is too heavy, the overall mass of the steel frame and steel plate will be too heavy, and part of the impact kinetic energy cannot be converted into potential energy, increasing the impact work received by the material, causing problems in material testing, and then increasing the material thickness, making the weight of the vehicle meaninglessly increased and unable to achieve the purpose of lightweighting the vehicle. However, if the weight of the steel plate + steel frame is designed according to the actual weight of the vehicle in each test, it cannot meet the purpose of the vehicle company's test cycle for multiple models and test cost control;

[0006] 3. At present, the steel frame is connected by ordinary bolts. When impacted by fragments, the connection is prone to deformation and cracking, and new bolts need to be installed, which prolongs the test time and also causes waste. Summary of the invention

[0007] In view of the above-mentioned defects existing in the prior art, the present invention provides a modular tooling for explosion-proof material testing, which can meet the needs of various quality vehicle models using the same tooling and bolts for explosion-proof testing, and can complete multi-part material testing in one test according to needs, thereby greatly reducing the test cost and test cycle.

[0008] The present invention is achieved through the following technical solutions:

[0009] A modular explosion-proof material testing tool, the testing tool comprising at least one basic module, multiple basic modules are connected to perform a single-site material explosion-proof test or to simultaneously test the explosion-proof performance of multiple sites in one test;

[0010] Wherein, the basic module includes a fixing frame, detachable pillars and impact-resistant structural bolts; a plurality of fixing frames are screwed together through the detachable pillars and impact-resistant structural bolts.

[0011] Furthermore, the fixing frame is a square frame, and connection areas are provided at the four corners of the fixing frame. The connection areas are provided with screw holes 1 connected downward, screw holes 2 connected upward, and screw holes 3 connected to the test material. The above screw holes can be threaded through impact-resistant bolts.

[0012] Furthermore, the detachable support column is provided with a screw hole 4 for upward connection and a screw hole 5 for downward connection, and both of the screw holes can be passed through impact-resistant bolts to achieve screw connection.

[0013] Furthermore, the impact-resistant bolt 100 includes a bolt body 10, wherein two end threaded sections 60 are provided at both ends of the bolt body 10, and a central threaded section 70 is provided in the middle, a fastening nut 20 is provided on each end threaded section 60, and two spring limiting nuts 30 are provided on the central threaded section 70, and a buffer spring 50 is provided between the two spring limiting nuts 30.

[0014] Furthermore, the threaded sections 60 at both ends and the central threaded section 70 have opposite threaded directions.

[0015] Furthermore, washers 40 are provided at the positions where the two spring limiting nuts 30 contact the buffer spring 50 for buffering.

[0016] Furthermore, washers 40 are installed on the outer sides of the fastening nuts 20 for buffering.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. A modular explosion-proof material testing tool of the present invention, wherein the material composition and heat treatment of the tool are designed for explosion-proof testing, so that the tool has excellent anti-impact deformation capability;

[0019] 2. Optimize and innovate the pain points of the single explosion-proof test duration, material test simulation and vehicle test errors. Design modular tooling to achieve overall weight control through modular splicing, and simulate multiple assembly tests in a single test to save time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a schematic diagram of a single-layer tooling;

[0022] Figure 2 It is a schematic diagram of the pillar;

[0023] Figure 3 It is a schematic diagram of cumulative assembly of the fixed frame;

[0024] Figure 4 This is a schematic diagram of the test of a single part of the tooling and test materials;

[0025] Figure 5 It is a schematic diagram of the multi-layer tooling test;

[0026] Figure 6 This is a schematic diagram of testing multiple parts of multi-layer tooling and test materials;

[0027] Figure 7 This is a schematic diagram of an impact-resistant bolt;

[0028] In the figure: screw hole 1 connected downward, screw hole 2 connected upward, screw hole 3 connected to the test material, screw hole 4 connected upward, screw hole 5 connected downward;

[0029] Impact-resistant bolt 100 , bolt body 10 , fastening nut 20 , spring limit nut 30 , gasket 40 , buffer spring 50 , threaded sections 60 at both ends, and center threaded section 70 . DETAILED DESCRIPTION

[0030] In order to clearly and completely describe the technical solution and its specific working process of the present invention, the specific implementation methods of the present invention are as follows in conjunction with the accompanying drawings of the specification:

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0034] Example 1

[0035] This embodiment provides a modular explosion-proof material testing tool, which includes a basic module, and can perform a single-site material explosion-proof test or simultaneously test the explosion-proof performance of multiple sites in one test;

[0036] Wherein, the basic module includes a fixing frame, detachable pillars and impact-resistant structural bolts; a plurality of fixing frames are screwed together through the detachable pillars and impact-resistant structural bolts.

[0037] like Figure 1 As shown, the fixing frame is a square frame, and connection areas are provided at the four corners of the fixing frame. The connection areas are provided with screw holes 1 connected downward, screw holes 2 connected upward, and screw holes 3 connected to the test material. The above screw holes can be threaded through impact-resistant bolts.

[0038] like Figure 2As shown, the detachable support is provided with a screw hole 4 for upward connection and a screw hole 5 for downward connection, and the above screw holes can be threaded with impact-resistant bolts. In one test, the overall mass is adjusted by adding up several fixed frames to meet the purpose of simulating the mass of the whole vehicle. The height of the tooling is adjusted by replacing detachable supports of different heights to meet the purpose of testing the explosion-proof performance of a certain part of the material at different distances. By stacking the same structure on the basis of the fixed frame plus the support, the explosion-proof performance of materials in multiple parts can be tested simultaneously in one test, such as Figure 3 As shown;

[0039] like Figure 7 As shown, the impact-resistant bolt 100 includes a bolt body 10, wherein two end threaded sections 60 are provided at both ends of the bolt body 10, and a central threaded section 70 is provided in the middle, a fastening nut 20 is provided on each end threaded section 60, and two spring limiting nuts 30 are provided on the central threaded section 70, and a buffer spring 50 is provided between the two spring limiting nuts 30.

[0040] The threaded sections 60 at both ends and the central threaded section 70 have opposite threaded directions.

[0041] Washers 40 are provided at the positions where the two spring limiting nuts 30 contact the buffer spring 50 for buffering.

[0042] Washers 40 are installed on the outer sides of the fastening nuts 20 for buffering.

[0043] Example 2

[0044] like Figure 4 As shown, in this embodiment, the explosion-proof performance test of a certain part of a certain vehicle model is carried out, and four 1500x1500 size fixing frames and 200mm high pillars are selected, as follows:

[0045] Align the screw holes at the four corners of a fixing frame with the screw holes of the four pillars respectively, and then stack and align the additional three fixing frames with the bottom fixing frame to simulate the weight of the parts around the component to be tested when testing a component. Align the test material with the screw holes of the top fixing frame, tighten it with impact-resistant bolts, and place the explosion source on the ground directly below the material to verify the explosion-proof performance of the material in a certain part of a certain vehicle model.

[0046] Example 3

[0047] To test the explosion-proof performance of a material in a certain part of a certain vehicle model, three 1200x1200 fixed frames and 100mm high pillars were selected.

[0048] Align the screw holes at the four corners of a fixing frame with the screw holes of the four pillars respectively, and then stack and align the two additional fixing frames with the bottom fixing frame to simulate the weight of the parts around the component to be tested when testing a component. Align the test material with the screw holes of the top fixing frame, tighten it with impact-resistant bolts, and place the explosion source directly above the material to verify the explosion-proof performance of the material in a certain part of a certain vehicle model.

[0049] Example 4

[0050] like Figure 6 As shown, an explosion-proof performance test was conducted on two parts of a certain vehicle model, and three 1200x1200 fixed frames and 220mm high pillars were selected.

[0051] Align the screw holes at the four corners of a fixing frame with the screw holes of the four pillars, tighten them with impact-resistant bolts, then stack and align the two additional fixing frames with the bottom fixing frame, align the ceiling test material with the screw holes of the top fixing frame, tighten them with impact-resistant bolts, then place the four pillars above the fixing frame connection area, align the screw holes 5 below the pillars with the screw holes 2 in the connection area, tighten them from the bottom with impact-resistant bolts, then place a fixing frame on the pillars, align the screw holes 2 in the four corner connection areas with the screw holes 4 above the four pillars, tighten them with impact-resistant bolts, align the material in part one with the screw holes in the top fixing frame, and tighten them with bolts. Place the explosion source directly above the material in part two for testing, and the explosion-proof performance test of materials in two parts of a certain vehicle model can be completed in one test.

[0052] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0054] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A modular explosion-proof material testing tool, characterized in that: The test tooling includes at least one basic module, and multiple basic modules are connected to perform explosion-proof tests on materials at a single location or to simultaneously test the explosion-proof performance of materials at multiple locations in one test; Wherein, the basic module includes a fixing frame, detachable pillars and impact-resistant structural bolts; a plurality of fixing frames are screwed together through the detachable pillars and impact-resistant structural bolts.

2. A modular explosion-proof material testing tool as claimed in claim 1, characterized in that: The fixing frame is a square frame, and connection areas are provided at the four corners of the fixing frame. The connection areas are provided with screw holes (1) for connecting downwards, screw holes (2) for connecting upwards, and screw holes (3) for connecting with the test material. The above screw holes can be threaded with impact-resistant bolts.

3. A modular explosion-proof material testing tool as claimed in claim 1, characterized in that: The detachable support column is provided with an upwardly connected screw hole (4) and a downwardly connected screw hole (5), and both of the screw holes can be threaded with impact-resistant bolts to achieve screw connection.

4. A modular explosion-proof material testing tool as claimed in claim 1, characterized in that: The impact-resistant bolt (100) comprises a bolt body (10), wherein two end threaded sections (60) are provided at both ends of the bolt body (10), and a central threaded section (70) is provided in the middle, a fastening nut (20) is provided on each end threaded section (60), and two spring limiting nuts (30) are provided on the central threaded section (70), and a buffer spring (50) is provided between the two spring limiting nuts (30).

5. A modular explosion-proof material testing tool as claimed in claim 4, characterized in that: The threaded sections (60) at both ends and the central threaded section (70) have opposite threaded directions.

6. A modular explosion-proof material testing tool as claimed in claim 4, characterized in that: Gaskets (40) are provided at the positions where the two spring limiting nuts (30) contact the buffer spring (50) for buffering.

7. A modular explosion-proof material testing tool as claimed in claim 4, characterized in that: Washers (40) are installed on the outer sides of the fastening nuts (20) for buffering.

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