THREE-DEGREE-OF-FREEDOM PARALLEL MECHANISM - SHENZHEN INST OF ADVANCED TECHNOLOGY，SHENZHEN CN

Title:

THREE-DEGREE-OF-FREEDOM PARALLEL MECHANISM

Document Type and Number:

WIPO Patent Application WO/2019/126919

Kind Code:

A1

Abstract:

A three-degree-of-freedom parallel mechanism, comprising a fixed platform (1), a movable platform (2) and three movement links, at least one movement link being a flexible link; the flexible link comprises a first connecting rod (5), a second connecting rod (6) and an axially variable rotation pair (4), the axially variable rotation pair (4) comprising a fixed member (41), a movable member (42) and a spherical hinge pair (43), the fixed member (41) having one end fixedly mounted on the fixed platform (1) and the other end attached to the inclined surface of the movable member (42) in a fitted manner, the spherical hinge pair (43) being accommodated in the fixed member (41) and a spherical hinge connecting rod (431) thereof passing through the movable member (42), the first connecting rod (5) being rotatably connected to the spherical hinge connecting rod (431) and the second connecting rod (6) respectively, and the second connecting rod (6) being connected to the movable platform (2) in a spherical hinge manner. The mechanism integrates the axially variable rotation pair into the configuration of the movement links, facilitating the transmission of a force and the torque of the movement links, and being able to effectively avoid a singular configuration of the parallel mechanism occurring.

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Inventors:

ZHAO GUORU (CN)
WANG YONGFENG (CN)
HAN LI (CN)
KONG XIANGZHAN (CN)

Application Number:

PCT/CN2017/118208

Publication Date:

July 04, 2019

Filing Date:

December 25, 2017

Export Citation:

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Assignee:

SHENZHEN INST OF ADVANCED TECHNOLOGY，SHENZHEN CN (CN)

International Classes:

B25J9/00

Foreign References:

CN103878766A	2014-06-25
CN103522279A	2014-01-22
CN107009345A	2017-08-04
CN105459088A	2016-04-06
JP2004017266A	2004-01-22
DE2449364A1	1976-04-22

Attorney, Agent or Firm:

SHENZHEN KEJIN INTELLECTUAL PROPERTY OFFICE (CN)

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