Vibration test device and method for vibration test

Abstract

The invention discloses a vibration test device, comprising: a main support frame, a stage assembly, a gravity compensation assembly and a stage driving assembly, the stage driving assembly includes a first driving assembly providing a vertical driving force and a first driving assembly providing a horizontal driving force One end of the gravity compensation assembly is fixed, and the other end is connected to the stage assembly to provide support for the stage assembly. A method of vibration testing is also provided. The vibration test device of the present invention can make the platform assembly realize horizontal vibration and vertical vibration through the driving action of the first drive assembly and the second drive assembly, and can provide a test condition with six degrees of freedom; and, through the set gravity The compensation assembly bears the main load weight, reduces the static load of the first driving assembly, thereby improving the utilization efficiency of the driving motor, therefore, compared with the prior art, the test device can bear a larger load.

Description

technical field [0001] The invention relates to a vibration test device, which is applied in the field of automation equipment. Background technique [0002] In the field of automation equipment manufacturing, many equipments are composed of precision parts, which are often disturbed by the external environment and ground vibration during the working process. With the development of automation technology, automation equipment has increasingly stringent requirements on the precision and stability of mechanical systems, especially in the field of semiconductor equipment, such requirements have almost reached the limit. [0003] As the system integration of automation equipment becomes more and more complex, it is more and more important to test the vibration reduction performance of automation equipment by simulating the vibration mode under actual working conditions through offline vibration excitation devices. Offline vibration simulation test, on the one hand, can complete...

AI Technical Summary

Problems solved by technology

[0004] For the vibration test under heavy load conditions, the traditional vibration test bench adopts hydraulic technology. Although the hydraulic technology can achieve very low frequency, due to the large response delay and damping problems, the output waveform is not a resonant waveform. And it introduces more clutter, which limits the application range of the vibration test bench

The emerging vibration test bench uses electromagnet technology. Although the electromagnet technology can provide a large force, its essence is that the magnetization of the iron core will generate suction after power is applied, and the movement of the attracted armature will cause displacement. Pulling to reset, there are hysteresis of magnetization and demagnetization and the form transformation of reciprocating push-pull force, resulting in output waveforms that are not resonant waveforms, which also limits the application range of vibration test benches

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