Pretension mechanism of graded wedge for piezoelectric ceramics

Abstract

The invented pretension mechanism includes the body with the flute, the tight screw, the movable wedge, the static wedge and the piezodielectric ceramics. The tight screw is in the bolthole located at the lower left part of the body. The movable wedge is positioned at the left side of the flute and adjacent to the tight screw. The piezodielectric ceramics is positioned at the right side of the flute. The static wedge is located between the movable wedge and the piezodielectric ceramics. In the rear part of the tight screw, there is the fixed flat rounded wing, which is matched to the flat groove on the side of the movable wedge. In the invention, twisting the tight screw can replace the piezodielectric ceramics so the maintaining work is easy. In the prior art, the pin and the glue are used to lock the piezodielectric ceramics so it is cumbersome to do the adjustment and maintenance.

Description

Technical field: [0001] The invention relates to a micro-operating device in a precision optical positioning instrument, in particular to a pre-tightening mechanism of piezoelectric ceramics. Background technique: [0002] After the existing piezoelectric ceramic pre-tightening mechanism is adjusted, it is fixed on the body and then reinforced with pins or screws and anti-loose glue to prevent the pre-tightening mechanism from loosening, which makes subsequent adjustment and maintenance very inconvenient. In addition, special jigs are required for adjustment, and when replacing piezoelectric ceramics, pin holes or screw holes need to be reworked on the body. Invention content: [0003] The purpose of the present invention is to develop a piezoelectric ceramic wedge pretension mechanism, which should be easy to adjust and maintain without any additional tools. The present invention includes body 1, set screw 2, piezoelectric ceramic 5, and it also includes dynamic wedge 3,...

AI Technical Summary

Problems solved by technology

[0002] After the existing piezoelectric ceramic pre-tightening mechanism is adjusted, it is firmly connected to the body and then reinforced with pins or screws and anti-loose glue to prevent the pre-tightening mechanism from loosening, which makes subsequent adjustment and maintenance very inconvenient. In addition, special fixtures are required for adjustment, and pin holes or screw holes on the body need to be reworked when replacing piezoelectric ceramics.

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