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Mi-shaped test fixture suitable for vibration test of products of different structures

A test fixture and vibration test technology, which is applied in vibration test, machine/structural component test, measuring device, etc. It can solve the problems that simple fixtures cannot meet large batches, product sizes are diversified, and hoisting is inconvenient, etc., and shorten the product. The effect of test cycle, ensuring reliability, and process flexibility

Inactive Publication Date: 2018-02-02
BEIJING INST OF SPECIALIZED MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In recent years, with the gradual increase of research and development tests, appraisal tests, and delivery tests, the original bulky and simple fixtures can no longer meet the needs of large quantities and diverse product sizes in actual work.
Different test products also require frequent replacement of fixtures, which is inconvenient for hoisting and requires four people to hoist together. This requires the fixtures installed on the vibration table to have the characteristics of light weight, easy disassembly and installation, and strong versatility.

Method used

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  • Mi-shaped test fixture suitable for vibration test of products of different structures
  • Mi-shaped test fixture suitable for vibration test of products of different structures
  • Mi-shaped test fixture suitable for vibration test of products of different structures

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Embodiment Construction

[0024] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The rice-shaped test fixture is machined from an aluminum alloy material, its surface is anodized, and its edges are deburred. The fixture is mainly composed of a disc, a reinforcing rib and a base. Among them, the disk is distributed with multiple fan-shaped blocks separated by T-shaped slots, which are responsible for bearing the weight of the vibration test piece. The triangular ribs play a role in strengthening the rigidity and strength of the entire structure. The chassis completes the connection between the entire fixture and the vibrating table.

[0026] Depend on figure 1 It can be seen that the diameter of the disk is φ800mm and the thickness is 30mm. The diameter direction of the disc is designed w...

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Abstract

The invention relates to a Mi-shaped test fixture suitable for vibration test of products of different structures, which belongs to the technical field of vibration test. The fixture can quickly pressand fix a test piece, and the whole process is flexible and convenient. The fixture has a wide application range and high versatility, and is suitable for vibration test of test pieces with differentstructure sizes. Because of a lightweight structure, the weight of the fixture is greatly reduced, and the work efficiency is greatly improved. The test fixture adopts a Mi-shaped T groove, threadedholes, reinforcing ribs and a countersunk hole. A fan-shaped module structure is formed on the upper surface. Modal analysis is made of the overall model using ANYSY. In the first-order to sixth-ordersimulation results, the resonant frequency of the fixture is higher than 1000Hz, and the resonance frequency point is not divergent and converges well. All contact portions are rigidly connected, sothat the bearing capacity is strong, and the reliability of the whole system is ensured.

Description

technical field [0001] The invention relates to the technical field of vibration tests, in particular to a rice-shaped test fixture suitable for vibration tests of products with different structures. Background technique [0002] In recent years, with the gradual increase of research and development tests, appraisal tests, and delivery tests, the original bulky and simple fixtures can no longer meet the needs of large batches and diverse product sizes in actual work. Different test products also require frequent replacement of fixtures, which is inconvenient for hoisting and requires four people to hoist together. This requires the fixtures installed on the vibration table to have the characteristics of light weight, easy disassembly and installation, and strong versatility. Especially when entering the batch production test stage, a set of fixtures is required to complete vibration tests of products of different models and specifications. Before the test starts, it is only...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
CPCG01M7/027
Inventor 张沛虞敬王建新
Owner BEIJING INST OF SPECIALIZED MACHINERY