Piezoelectric drive type two-degree-of-freedom high-precision microoperation clamp

Abstract

The invention discloses a piezoelectric drive type two-degree-of-freedom high-precision microoperation clamp. The piezoelectric drive type two-degree-of-freedom high-precision microoperation clamp comprises a bridge type displacement amplifying mechanism, a lever amplifying mechanism, an SR displacement amplifying mechanism and a base body. The bridge type displacement amplifying mechanism is provided with a movable upper cross beam and, a movable lower cross beam, a left four-connecting-rod mechanism and a right four-connecting-rod mechanism, wherein the upper cross beam and the lower cross beam are connected through the left four-connecting-rod mechanism and the right four-connecting-rod mechanism, the left four-connecting-rod mechanism and the right four-connecting-rod mechanism are each formed through connection by a flexible hinge I, and two flexible parallel double-plate mechanisms I which are connected with the base body are arranged at the two ends of the lower cross beam correspondingly; and a piezoelectric ceramic actuator I is arranged between the upper cross beam and the lower cross beam. A parallelogram mechanism formed through connection by a flexible hinge II is arranged on the left side of the bridge type displacement amplifying mechanism. A connecting beam perpendicular to the parallelogram mechanism is formed at the output end of the parallelogram mechanism, and a jaw is arranged on the connecting beam. The piezoelectric drive type two-degree-of-freedom high-precision microoperation clamp has the characteristics of being high in precision, high in response speed, low in manufacturing cost and the like.

Description

technical field [0001] The invention belongs to the field of micro-device packaging, in particular to a piezoelectric-driven two-degree-of-freedom high-precision micro-operation gripper. Background technique [0002] Polarization-maintaining fiber (PMOF) is a special fiber specially designed to transmit linearly polarized light. Unlike ordinary fibers, there is usually an angle error between the two optical fibers. To ensure the effectiveness of light transmission, the two PMOFs need to be rotationally aligned during assembly. So far, the assembly process of PMOF still mainly relies on manual delicate operation, the production cost is high and it is not suitable for mass production. [0003] The existing micro-manipulation grippers can be roughly divided into two types: single-degree-of-freedom and two-degree-of-freedom: for single-degree-of-freedom micro-manipulation grippers, only simple pick-and-place actions can be realized, which cannot meet the needs of rotating PMOF ...

AI Technical Summary

Problems solved by technology

So far, the assembly process of PMOF still mainly relies on manual delicate operation, the production cost is high and it is not suitable for mass production

[0003] The existing micro-manipulation grippers can be roughly divided into two types: single-degree-of-freedom and two-degree-of-freedom: for single-degree-of-freedom micro-manipulation grippers, only simple pick-and-place actions can be realized, which cannot meet the needs of rotating PMOF by an angle ; The existing two-degree-of-freedom micro-manipulation gripper usually has a complex structure and a large volume, and is still in the academic research stage. Even if the PMOF can be rotated, the precise positioning of the PMOF cannot be guaranteed

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