CN114427946A - General Vibration Fixtures and Vibration Test Methods - Google Patents

Abstract

The invention relates to the technical field of airborne display, and discloses a general vibration fixture and a vibration test method. The universal vibration clamp comprises a universal base (1) and a plurality of special panels (2), and the multiple special panels (2) are detachably fixed to the universal base (1), and the special panels (2) are detachably fixed to the universal base (1). (2) A central opening, the opening is in the shape of a back-shaped, and one or more fixed installation holes (4) are opened on the special panel (2) around the circumferential direction of the opening, and the fixed installation holes (4) ) is configured to be able to detachably install one or more airborne display products to be tested for vibration; wherein the number of the openings is greater than or equal to 1. The universal vibration clamp has simple structure, light overall weight, low manufacturing cost, and saves energy and reduces consumption during use.

Description

General Vibration Fixtures and Vibration Test Methods

technical field

The invention relates to the technical field of airborne display, in particular to a general vibration fixture and a vibration test method.

Background technique

Due to the particularity of the airborne display field, the airborne display products have many types and different mechanical interfaces. Therefore, each product corresponds to a special vibration fixture, and the fixture can only vibrate during the vibration test. a product. However, the vibration test bench is a large energy consumption equipment, so matching a special vibration fixture for each product will not only cause high design and manufacturing costs, but also difficult to manage many fixtures.

Therefore, there is an urgent need to design a new type of universal vibration fixture to meet the simultaneous vibration test requirements of most products, greatly reducing the type and quantity of vibration fixtures, reducing the workload of designers, effectively reducing costs, and saving energy and consumption.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a universal vibration clamp, which has a simple structure, light overall weight, low manufacturing cost, and saves energy and reduces consumption during use.

In order to achieve the above object, the present invention provides a universal vibration clamp, the universal vibration clamp includes a universal base and a plurality of special panels, the multiple special panels are detachably fixed to the universal base, the center of the special panel is open, and the opening It is in the shape of a back-shaped, and the special panel is provided with one or more fixed installation holes around the circumferential direction of the opening, and the fixed installation holes are set to be able to detachably install one or more airborne display products to be tested for vibration; wherein , the number of openings is greater than or equal to 1.

Preferably, the universal base includes a base plate and a plurality of side panels surrounding the base plate in a circumferential direction.

Preferably, the side panels are pre-fixed to the base plate by means of screws.

Preferably, the side panel and the bottom panel are welded and fixed.

Preferably, the bottom plate is provided with a plurality of fixing holes, which are used for fixing to the vibration test bench in cooperation with fixing screws.

Preferably, the dedicated panel is fixed to the side panel by means of fastening screws.

Preferably, the positions of the plurality of fastening screws are the same on each of the special panels, so that the vibration test can be carried out for different types of products by only replacing the corresponding special panels.

Preferably, the overall height of the universal vibration clamp is less than 300mm, wherein the thickness of the special panel is less than 30mm, and the thickness of the bottom panel and the side panel are both less than 40mm.

The present invention also provides a method for conducting a vibration test using the above-mentioned universal vibration fixture, the method comprising:

Step 1. Use fastening screws to pre-fix the side panels to the bottom plate. After the installation of multiple side panels is completed, weld and fix them to the bottom plate to form a universal base;

Step 2. Use fastening screws to install the special panel on the general base to form a general vibration fixture;

Step 3. Install one or more airborne display products to be tested on the special panel;

Step 4. Install the universal base on the vibration test bench;

Step 5. Turn on the vibration test equipment for vibration test;

Among them, the order of step 3 and step 4 can be interchanged according to the test needs.

According to the above technical solutions, the present invention provides a universal vibration fixture in view of the characteristics of products in the airborne display field, which includes a universal base and several special panels. Among them, the universal base includes a bottom plate and several side panels, the airborne display product is installed on the special panel, the special panel is installed on the universal base, and the universal base is installed on the vibration test bench. The use of this universal vibration fixture can carry out vibration tests of multiple products at the same time, and the vibration fixture is light in weight, low in cost, has good strength and rigidity, and can effectively save energy and reduce consumption when it meets the harsh airborne vibration test conditions.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the structural representation of the general vibration clamp provided according to the present invention;

2 is a perspective view of a general-purpose vibration clamp in an embodiment according to the present invention;

FIG. 3 is a schematic diagram of the assembly of a universal base in an embodiment according to the present invention.

Description of reference numerals

1-Universal base

2- Dedicated panel

3- Fastening screws

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

In the present invention, unless otherwise stated, the orientation words such as "center, bottom, side" included in terms only represent the orientation of the term under normal usage, or are common names understood by those skilled in the art , and should not be construed as a limitation of the term.

1, the present invention provides a universal vibration fixture, the universal vibration fixture includes a universal base 1 and a plurality of special panels 2, the plurality of special panels 2 are detachably fixed to the universal base 1, and the center of the special panels 2 Opening, the opening is in the shape of a zigzag, and the special panel 2 is provided with one or more fixed installation holes 4 around the circumferential direction of the opening, and the fixed installation holes 4 are arranged to be able to detachably install one or more vibration tests to be tested. Airborne display products; wherein, the number of openings is greater than or equal to 1.

Specifically, in this embodiment, the universal base 1 includes a bottom plate and a plurality of side panels surrounding the bottom plate in the circumferential direction.

In the actual use of the assembly, the side panel can be pre-fixed to the base plate by screws. After pre-positioning, the side panel and the bottom plate are welded and fixed, so that the overall structure is more compact and the stability is higher during use.

In order to facilitate the installation and fixation of the universal vibration fixture, preferably, a plurality of fixing holes are provided on the bottom plate for fixing to the vibration test bench in cooperation with fixing screws. In this way, the quick disassembly and assembly of the universal vibration fixture can be realized, and the work efficiency of the test can be greatly improved.

Likewise, in order to facilitate disassembly and assembly, preferably the dedicated panel 2 is fixed to the side panel by means of fastening screws 3 .

In order to expand the scope of application of the universal vibration clamp and improve its practicability; further, since the universal vibration clamp has multiple special panels 2, in order to make the multiple special panels 2 interchangeable, one of them has been used for many times for a long time. When it is damaged, it can be directly and quickly replaced to ensure the smooth progress of the test. Preferably, the positions of the plurality of fastening screws 3 on each special panel 2 are the same, so that the corresponding special panels 2 can be replaced for different Vibration test is carried out for the products of the model.

In addition, in order to simplify the structure, reduce the overall weight, and facilitate manual operation during use, it is preferable that the overall height of the universal vibration clamp is less than 300mm, wherein the thickness of the special panel 2 is less than 30mm, and the thickness of the bottom plate and the side panel is less than 40mm.

In addition, the present invention also provides a method for conducting a vibration test using the above-mentioned universal vibration fixture, the method comprising:

Step 1. Use fastening screws to pre-fix the side panels to the bottom plate. After the installation of multiple side panels is completed, weld and fix them to the bottom plate to form a universal base 1;

Step 2. Use fastening screws to install the special panel 2 on the universal base 1 to form a universal vibration fixture;

Step 3. Install one or more airborne display products to be tested on the special panel 2;

Step 4. Install the universal base 1 on the vibration test bench;

Step 5. Turn on the vibration test equipment for vibration test;

Among them, the order of step 3 and step 4 can be interchanged according to the test needs.

Specifically, as shown in FIG. 2 , in one embodiment, the universal vibration fixture can simultaneously install 4 airborne display products, and the 4 products are respectively installed on the special panel 2 , and the special panel 2 is installed on the universal base 1 On the above, the universal base 1 is connected to the vibration test bench. Since the positions and specifications of the mounting holes of the special panel 2 are the same, the four products can be of the same model or different models.

As shown in Figure 3, the overall height of the universal base 1 is 185mm and the weight is 15Kg. The table is fixed, the bottom plate 11 is fixed with the side panel 12, side panel 13, side panel 14, and side panel 15 through 18 fastening screws 16, and the thickness of the bottom plate 11 is 20mm; The panels 15 are each initially positioned by two fastening screws 16. The thickness of the side panel 12, side panel 13, side panel 14 and side panel 15 is 30mm; The panel 15 is preliminarily positioned with fastening screws and then welded at both ends of each contact surface to form an integral structure, which increases the rigidity and strength of the universal base.

The thickness of the special panel 2 is 20mm, and the special panel 2 is fixed on the universal base by 8 center-symmetrical screws; the center of the special panel 2 is open, in the shape of "back", and there are mounting holes for on-board display products on it, which are used to install the machine. Load the display product.

The fastening screw 3 is made of stainless steel standard screws, and the screw size is M8.

The special panel 2, the bottom panel 11, the side panel 12, the side panel 13, the side panel 14 and the side panel 15 are aluminum alloys of standard grades, which have the characteristics of low material density, good processing performance, and easy welding.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present invention provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (9)

1. The universal vibration clamp is characterized by comprising a universal base (1) and a plurality of special panels (2), wherein the special panels (2) are detachably and fixedly connected to the universal base (1), the special panels (2) are provided with a central opening in a shape like a Chinese character 'hui', one or more fixed mounting holes (4) are formed in the special panels (2) in the circumferential direction of the opening, and one or more airborne display products to be subjected to vibration tests can be detachably mounted in the fixed mounting holes (4); wherein the number of the openings is more than or equal to 1.

2. Universal vibration jig according to claim 1, characterized in that the universal base (1) comprises a bottom plate and a plurality of side panels enclosing in the circumferential direction of the bottom plate.

3. The universal vibration jig as recited in claim 2, wherein the side panels are pre-fastened to the bottom plate by screws.

4. The universal vibration jig of claim 3, wherein the side panels are welded to the bottom plate.

5. The universal vibration fixture as claimed in claim 2, wherein the bottom plate has a plurality of fixing holes for fixing to the vibration testing table in cooperation with fixing screws.

6. Universal vibration clamp according to claim 2, characterized in that said dedicated panel (2) is fixed to said side panels by fastening screws (3).

7. Universal vibration clamp according to claim 6, characterized in that the position of a plurality of said fastening screws (3) on each dedicated panel (2) is identical, so as to enable vibration tests to be carried out for different models of products by simply replacing the corresponding dedicated panel (2).

8. Universal vibration jig according to claim 2, characterized in that the overall height of the universal vibration jig is less than 300mm, wherein the thickness of the dedicated panel (2) is less than 30mm and the thickness of the bottom plate and the side plates are each less than 40 mm.

9. A method of vibration testing using the universal vibration jig of any one of claims 1 to 8, the method comprising:

step 1, pre-fixing side panels to a bottom plate by using screws, and welding and fixing a plurality of side panels and the bottom plate after the side panels are installed to form a universal base (1);

step 2, mounting the special panel (2) on the universal base (1) by using a fastening screw (3) to form a universal vibration clamp;

step 3, mounting one or more onboard display products to be subjected to vibration tests on the special panel (2);

step 4, mounting the universal base (1) on a vibration test bed;

step 5, starting vibration test equipment to perform vibration test;

wherein, the sequence of the step 3 and the step 4 can be interchanged according to the test requirement.

Images