Clamp device of two-shaft synchronous vibration table

Abstract

The invention discloses a clamp device of a two-shaft synchronous vibration table. The clamp device comprises a front adjustment clamp and a rear adjustment clamp; the front adjustment clamp comprises two parallel front adjustment clamping blocks, namely a first front adjustment clamping block and a second front adjustment clamping block; and the rear adjustment clamp comprises two parallel rear adjustment clamping blocks, namely a first rear adjustment clamping block and a second rear adjustment clamping block. With the independent front adjustment clamp and rear adjustment clamp, the clamp device can be used for a two-shaft vibration table to respectively clamp two shafts of a test piece, the reliability is high; moreover, since relative space between the front adjustment clamp and the rear adjustment clamp is adjustable, the space between the two shafts of the test piece can be adjusted by the clamp, and the location precision is high; furthermore, a rear support lug of the rear adjustment clamp is hinged with a rear adjustment bottom block, and the rear support lug can rotate around a hinge axis relative to the rear adjustment bottom block, so that the vibration table is effectively prevented from damaging the test piece in the work process owning to asynchronous vibration of a front shaft and a rear shaft.

Description

technical field [0001] The invention relates to a vibration test device for a test piece, in particular to a two-axis synchronous vibration table fixture. Background technique [0002] Vibration tests were first used in the aerospace sector, and are now widely used in earthquake simulation, transportation, construction and other fields. With the improvement of product reliability requirements, especially in the above-mentioned vehicle and aerospace fields, the development of vibration test systems, especially multi-axis test systems, which are key equipment for test piece reliability tests, is becoming more and more important. The fixture is a device for fixing the test piece on the working table of the vibrating table and transmitting the vibration of the vibrating table to the test piece. Its quality is directly related to the quality of the test. However, at present, the importance of the special fixtures for large specimens, especially the fixtures for multi-axis synchr...

AI Technical Summary

Problems solved by technology

The present invention is aimed at a biaxial vibrating table, and the designed jig can not only conveniently adjust the relative distance between the front adjustment jig and the rear adjustment jig on the vibrating table according to the length of the test piece, but also can realize when the biaxial vibrating table exists during the vibration process. The automatic adjustment of the fixture to the vibration of the test piece in the case of asynchronous phenomenon can effectively avoid the damage of the asynchronous vibration to the test piece during the vibration process. So far, the synchronous adjustment fixture has not been used on a dual-axis vibration table in China.

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