A Tri-Stable Realization Method of Fully Compliant Five-bar Mechanism

Abstract

The invention relates to a three-stable state implementation method of a fully-flexible five-rod mechanism. The three-stable state implementation method is characterized in that the fully-flexible five-rod mechanism at least comprises a rack, a drive rod, a left connecting rod, a right connecting rod, a connecting rod rack, a left lower flexible hinge, a left upper flexible hinge, an upper flexible hinge, a right upper flexible hinge and a right lower flexible hinge, wherein the rack and the drive rod are connected through the left lower flexible hinge; the drive rod and the left connecting rod are connected through the left upper flexible hinge; the left connecting rod and the right connecting rod are connected through the left upper flexible hinge; the right connecting rod and the connecting rod rack are connected through the right upper flexible hinge; and the connecting rod rack and the rack are connected through the right lower flexible hinge. The fully-flexible five-rod mechanism is simple in structure, is low in manufacturing cost, is free from friction, is free from abrasion, is capable of being processed in a single-piece manner, is precise to position, and can be used for equipment such as a precise positioning platform, a multiple-way optical switch and the like.

Description

technical field [0001] The invention belongs to the field of compliant mechanisms, and relates to a method for realizing the tristable state of a fully compliant five-bar mechanism. The utility model has the characteristics of simple structure, convenient manufacture, low manufacturing cost, reliable use, etc., and can be applied to fields such as switches, valves, and relays. Background technique [0002] In many applications, it is necessary to realize the control and switching of three stable states, such as three-way valves, multi-channel optical switches, etc. Generally, there is only one operating cycle of the mechanism, and the multi-stable mechanism can stably stay in multiple equilibrium positions without additional energy input to maintain these stable equilibrium states, so it is suitable for valves, switches, relays and other devices. There are also applications in the field of deployable mechanisms and reconfigurable robotics. [0003] Traditional switches and...

AI Technical Summary

Problems solved by technology

Most of the existing fully compliant tri-stable mechanisms are composed of two compliant bistable mechanisms in series or adding flexible components on the basis of a compliant bistable mechanism, and the structure is relatively complicated.

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