Honeycomb amplification type fiber push-out device and working method thereof

Abstract

The invention discloses a honeycomb amplification type fiber push-out device and a working method thereof. The device comprises a workbench, a manual adjustment micro-motion platform and a honeycomb type displacement output mechanism. The manual adjustment micro-motion platform is fixed to the workbench, and the honeycomb type displacement output mechanism is fixed to the front side of the manualadjustment micro-motion platform. The honeycomb type displacement output mechanism comprises a frame type honeycomb type amplification mechanism, an ejector pin and a plurality of groups of amplification assemblies; the amplification assemblies are arranged on the frame type honeycomb amplification mechanism; each amplification assembly comprises a bridge type amplification mechanism, a piezoelectric ceramic group, a piezoelectric ceramic positive electrode input wire and a piezoelectric ceramic negative electrode input wire; a detected fiber slide is fixed on the workbench and is positioned below the thimble; by inputting a signal into the piezoelectric ceramic group, the piezoelectric ceramic group extends and outputs displacement, the displacement is amplified by the bridge type amplification mechanism, and the ejector pin moves downwards along with the displacement to push out a single fiber of the fiber slide. The device has the advantages of simple structure, high response speed,high positioning precision and the like.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric precision actuation, and relates to a fiber ejecting device, in particular to a honeycomb-amplified fiber ejecting device and a working method thereof. Background technique [0002] Piezoelectric actuation technology is an emerging technology that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into macroscopic motion. Because of its small size, high precision, fast response, self-locking when power is off, and no electromagnetic interference And other advantages, can meet the requirements of many high-tech fields. According to the different excitation modes during actuation, it can be divided into two types: resonance type and non-resonance type. The core component of the resonance type is a single piezoelectric ceramic sheet. The piezoelectric element is used to excite the resonance of the elastic body to obtain amplified deformation. The defo...

AI Technical Summary

Problems solved by technology

Early fiber ejection devices usually use servo motors to achieve ejection, which can satisfy large thrust and large stroke. The disadvantage is that the precision is not high, it is difficult to ensure the controllability of stepping motion, and it is easy to cause fiber damage.

[0004] The invention patent application (application number 201910061558.3) titled a fiber ejection device based on laminated piezoelectric ceramics and its working method discloses a fiber ejection device. Although piezoelectric elements are used, the laterally laminated Piezoelectric ceramic structure is prone to instability during pushing and is easily damaged by shear force

In addition, the push-out displacement it can produce is limited, and sometimes the single fiber cannot be completely pushed out, and the complete residual stress between the single fiber and the glass slide cannot be obtained

Secondly, the structure distribution of the horizontal push type causes the self-weight of the displacement output structure to produce lateral interference on the thimble, which affects the test results

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