Automobile suspension cushion support arm crushing experiment auxiliary device

Abstract

The application discloses a kind of auxiliary devices for suspension soft cushion support arm crushing experiment, including base, adapter for installing suspension soft cushion support arm and auxiliary pressure head for applying pressure to suspension soft cushion support arm are set on base, the angle of adapter can be adjusted;By adjusting the angle of adapter, the adjustment of the stress position of suspension soft cushion support arm is realized.The auxiliary device for suspension soft cushion support arm crushing experiment of the application can realize the suspension soft cushion support arm crushing experiment of each angle, investigate the structure of suspension soft cushion support arm under different angle stress conditions, meet the requirements of suspension soft cushion support arm crushing experiment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crush test of automobile suspension cushion support arm, and particularly relates to a crush test auxiliary device for suspension cushion support arm. BACKGROUND

[0002] The suspension cushion support arm is an important part connecting the automobile body and the power assembly, which cooperates with the suspension cushion shell, the main spring rubber and the base to support the power assembly, and plays a role in fixing and damping, and is one of the key automobile parts. The material of the suspension cushion support arm is usually divided into cast iron and aluminum alloy. Since the ductility of the two materials is not high, the failure mode is mostly brittle fracture. Therefore, the crush test is an important means for detecting the mechanical properties of the suspension cushion support arm.

[0003] The conventional performance verification of the suspension cushion support arm includes material performance verification, part performance verification and assembly performance verification. The suspension cushion support arm mainly bears bending stress. Due to the complexity of the vehicle motion, the stress direction is also variable. Therefore, whether the size of the crush force in each direction meets the design requirements is the key verification content of the part performance verification. The bending performance verification currently generally adopts the general test method of GB / T7314. This method is a general recommended scheme for metal material compression test, but it does not provide clear guidance on the configuration of the experimental device for the suspension cushion support arm crush test. Therefore, the prior art lacks a device that can meet the suspension cushion support arm crush test. SUMMARY

[0004] The present application provides a suspension cushion support arm crush test auxiliary device, which aims to meet the requirements of the suspension cushion support arm crush test.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is: a suspension cushion support arm crush test auxiliary device, comprising a base, an adapter for mounting the suspension cushion support arm arranged on the base, and an auxiliary pressure head for applying pressure to the suspension cushion support arm, the angle of the adapter is adjustable; by adjusting the angle of the adapter, the stress position of the suspension cushion support arm is adjusted.

[0006] The auxiliary pressure head comprises a connecting head and a pressure rod connected thereto, and the connecting head is connected with the universal testing machine.

[0007] An auxiliary gasket is arranged between the adapter and the base.

[0008] The adapter is connected with the base by a first bolt, a first mounting hole for the first bolt to pass through is arranged on the adapter, a second mounting hole for the first bolt to pass through is arranged on the base, and a through hole for the first bolt to pass through is arranged on the auxiliary gasket.

[0009] The second mounting hole is a circular arc hole.

[0010] The first mounting hole and the second mounting hole are each provided with at least two.

[0011] The adapter is connected with the base through a second bolt, the adapter is provided with a third mounting hole through which the second bolt passes, the base is provided with a fourth mounting hole through which the second bolt passes, and the axis of the second bolt is the rotation center line when the adapter rotates.

[0012] The first bolt and the second bolt are horizontally arranged, and the axes of the first bolt and the second bolt are parallel.

[0013] The auxiliary gasket is in a circular arc structure.

[0014] The suspension soft cushion support arm crushing experiment auxiliary device can realize suspension soft cushion support arm crushing experiments at various angles, investigate the structure of the suspension soft cushion support arm under different angle stress conditions, and meet the requirements of the suspension soft cushion support arm crushing experiment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the suspension soft cushion support arm crushing experiment auxiliary device of the present application;

[0016] Figure 2 is a structural schematic view of the auxiliary pressure head;

[0017] Figure 3 is a structural schematic view of the adapter;

[0018] Figure 4 is a structural schematic view of the auxiliary gasket;

[0019] Figure 5 is a structural schematic view of the base;

[0020] The marks in the above figures are as follows: 1, auxiliary pressure head; 2, adapter; 201, first mounting hole; 202, third mounting hole; 3, auxiliary gasket; 4, base; 401, second mounting hole; 402, fourth mounting hole; 5, first bolt; 6, second bolt; 7, suspension soft cushion support arm. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, which show several embodiments of the present application. However, the present application can be realized in different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0022] It is to be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present therebetween, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present therebetween. The terms "vertical", "horizontal", "upper", "lower", and the like as used herein are used for ease of description only.

[0023] It is to be noted that in the following embodiments, the terms "first", "second", "third", and "fourth" do not represent absolute distinction in structure and / or function, nor represent execution order, but merely for the convenience of description.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0025] As shown in Figures 1 to 5 The present application provides a suspension cushion support arm crushing experiment auxiliary device, which comprises a base 4, an adapter 2 arranged on the base 4 and used for mounting a suspension cushion support arm, and an auxiliary pressure head 1 used for applying pressure to the suspension cushion support arm, and the angle of the adapter 2 is adjustable; by adjusting the angle of the adapter 2, the stress position of the suspension cushion support arm is adjusted.

[0026] Specifically, as shown in Figure 1 and Figure 2 The auxiliary pressure head 1 comprises a connecting head and a pressure rod connected with each other, the connecting head is connected with a universal testing machine, and the pressure rod is used for contacting the suspension cushion support arm. The connecting head is used for connecting the universal interface of the universal testing machine, and can be designed according to the interface form of different testing machines. The pressure rod is the part directly contacting the suspension cushion support arm. By the movement of the cross beam of the universal testing machine, the loading of the experimental force is realized, so that the auxiliary pressure head 1 can apply pressure to the suspension cushion support arm mounted on the adapter 2.

[0027] As shown in Figure 1 , Figure 3 and Figure 4 An auxiliary gasket 3 is arranged between the adapter 2 and the base 4. The adapter 2 is a component connecting the suspension cushion support arm and the base 4, and the adapter 2 realizes the stress loading of the suspension cushion support arm at different angles through cooperation with the auxiliary gasket 3.

[0028] As shown in Figure 1 and Figure 5As shown, the base 4 mainly plays a fixing and supporting role, and is connected with the base of the universal testing machine through bolt fastening, or is connected with the T-shaped groove of the universal testing machine.

[0029] The adapter 2 is detachably connected with the base 4, and only the corresponding adapter 2 needs to be replaced for different specifications of the suspended soft cushion support arm, the main body can adopt the same set of tool clamps, and the tool clamps of the testing machine do not need to be frequently replaced during the experiment of different specifications of the suspended soft cushion support arm.

[0030] The present application realizes the multi-angle suspended soft cushion crushing experiment, the stress angle of the suspended soft cushion is freely adjustable in the range of 0-180 degrees, and the present application only needs to replace the adapter 2, so that the crushing experiment of different specifications of the suspended soft cushion support arm can be flexibly carried out, which is convenient and practical and has very low cost. In the experiment process, the relative position of the base 4 of the auxiliary device and the auxiliary pressure head 1 in the X and Y directions remains unchanged, ensuring the stability of the experiment process, and the X and Y directions are both horizontal directions and perpendicular to each other.

[0031] As shown in Figure 1 , Figures 3 to 5 , the adapter 2 is connected with the base 4 through the first bolt 5, the first mounting hole 201 for the first bolt 5 to pass through is arranged on the adapter 2, the second mounting hole 401 for the first bolt 5 to pass through is arranged on the base 4, and the through hole for the first bolt 5 to pass through is arranged on the auxiliary gasket 3. The adapter 2 is connected with the base 4 through the second bolt 6, the third mounting hole 202 for the second bolt 6 to pass through is arranged on the adapter 2, the fourth mounting hole 402 for the second bolt 6 to pass through is arranged on the base 4, and the axis of the second bolt 6 is the rotation center line when the adapter 2 rotates. The second mounting hole 401 is a circular arc hole, and the first mounting hole 201 and the second mounting hole 401 are each provided with at least two. The first bolt 5 and the second bolt 6 are horizontally arranged, and the axes of the first bolt 5 and the second bolt 6 are parallel. The fourth mounting hole 402 is a circular hole, the second mounting hole 401 and the fourth mounting hole 402 are coaxially arranged, and the fourth mounting hole 402 is distributed around the outside of the second mounting hole 401. The auxiliary gasket 3 is a circular arc structure, and the auxiliary gasket 3 is located between the adapter 2 and the second mounting hole 401.

[0032] As shown in Figure 1 , Figures 3 to 5As shown, in the embodiment, two first mounting holes 201 and one third mounting hole 202 are arranged on the adapter 2, the first mounting holes 201 and the third mounting hole 202 are circular holes, the third mounting hole 202 is located at the middle position of the two first mounting holes 201, the adapter 2 is installed on the base 4 through two first bolts 5 and one second bolt 6, and detachable connection with the base 4 is realized, and the disassembly and assembly are convenient. Correspondingly, two second mounting holes 401 and one fourth mounting hole 402 are arranged on the base 4, the two second mounting holes 401 are uniformly distributed in the circumferential direction with the axis of the fourth mounting hole 402 as the center line, and the auxiliary gasket 3 is provided with two.

[0033] During the experiment, the suspended soft pad support arm is fixed on one end of the adapter 2 through a bolt, and the other end of the adapter 2 is connected with the base 4 and the auxiliary gasket 3. After the stress angle of the suspended soft pad support arm is set, the first bolt 5 and the second bolt 6 are locked, the adapter 2 is fixed, and the auxiliary gasket 3 is clamped between the adapter 2 and the base 4.

[0034] After the previous experiment is completed, the first bolt 5 and the second bolt 6 are loosened, the angle of the adapter 2 is adjusted by rotating the adapter 2, the adapter 2 drives the suspended soft pad support arm to rotate synchronously, the stress direction of the suspended soft pad support arm can be adjusted, and the next test can be carried out.

[0035] The suspended soft pad support arm crushing experiment auxiliary device has the following advantages:

[0036] 1. The suspended soft pad support arm crushing experiment at various angles can be realized, the structural strength of the suspended soft pad support arm under different angle stress conditions is investigated, and the investigation is more comprehensive;

[0037] 2. In cooperation with the corresponding auxiliary gasket 3, the adjustment of the crushing experiment angle is continuous, and only several specific angles can be investigated;

[0038] 3. The crushing test of suspended soft pad support arms of different shapes and specifications can be carried out, only the adapter 2 needs to be replaced, the main device remains unchanged, the workload is small, and the efficiency is high.

[0039] The above describes the present application in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above manner, as long as various non-essential improvements are adopted, or the concept and technical scheme of the present application are directly applied to other occasions without improvement, all of which are within the protection scope of the present application.

Claims

1. A device for assisting in a crush test using a suspended soft pad support arm, characterized in that: It includes a base, an adapter mounted on the base for mounting the suspension pad support arm, and an auxiliary pressure head for applying pressure to the suspension pad support arm. The angle of the adapter is adjustable. By adjusting the angle of the adapter, the force-bearing part of the suspension pad support arm can be adjusted. The adapter and the base are detachably connected. During the experiment, the relative positions of the base and the auxiliary pressure head of the auxiliary device in the X and Y directions remain unchanged. Both the X and Y directions are horizontal and perpendicular to each other. The adapter is connected to the base by a first bolt. The adapter has a first mounting hole through which the first bolt passes, the base has a second mounting hole through which the first bolt passes, and the auxiliary gasket has a through hole through which the first bolt passes. The adapter is connected to the base by a second bolt. The adapter has a third mounting hole through which the second bolt passes, and the base has a fourth mounting hole through which the second bolt passes. The axis of the second bolt is the rotation center line of the adapter when it rotates. The second mounting hole is an arc-shaped hole, and at least two of both the first and second mounting holes are provided; the first and second bolts are horizontally positioned and their axes are parallel. The fourth mounting hole is a round hole. The second and fourth mounting holes are coaxially arranged, and the fourth mounting hole is distributed around the outer perimeter of the second mounting hole. The auxiliary gasket has an arc-shaped structure and is located between the adapter and the second mounting hole; During the experiment, the suspension soft pad support arm is fixed to one end of the adapter with bolts, and the other end of the adapter is connected to the base and auxiliary pad. After setting the force angle of the suspension soft pad support arm, the first bolt and the second bolt are tightened to fix the adapter, and the auxiliary pad is sandwiched between the adapter and the base. After completing the previous experiment, loosen the first and second bolts, adjust the angle of the adapter by rotating it, and the adapter will drive the suspension soft pad support arm to rotate synchronously, adjusting the force direction of the suspension soft pad support arm, and then carry out the next experiment.

2. The auxiliary device for the crush test of the suspended soft pad support arm according to claim 1, characterized in that: The auxiliary pressure head includes a connector and a pressure rod connected together, and the connector is connected to the universal testing machine.

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