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Four-dimensional parallel mechanism

A parallel, four-dimensional technology, used in manipulators, program-controlled manipulators, manufacturing tools, etc., can solve the problems of low stiffness and weak bearing capacity, and achieve the effect of high stiffness and strong bearing capacity.

Inactive Publication Date: 2021-06-22
西安智星语知识产权服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The four driving kinematic pairs in the three branch chains are the moving pair and the rotating pair respectively, realizing one-dimensional movement and three-dimensional rotation four-degree-of-freedom motion input and output are completely one-to-one correspondence, which has the advantages of low cost, good kinematics and force transmission performance, etc. , can be applied to parallel robots, parallel machine tools, micro-robots, etc., but the mechanism only contains three branches, with low rigidity and weak carrying capacity

Method used

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  • Four-dimensional parallel mechanism

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Embodiment Construction

[0012] The following description provides many different embodiments, or examples, for implementing various features of the invention. The elements and arrangements described in the following specific examples are only used to express the present invention in a concise manner, and are only used as examples rather than limiting the present invention. For example, a description of a first feature on or over a second feature includes direct contact between the first and second features, or another feature disposed between the first and second features such that the second feature The first and second features are not in direct contact.

[0013] Spatially relative terms, such as above or below, are used herein to simply describe the relationship of one element or one feature with respect to another element or feature on the drawings. This includes the device being used or operated in different orientations than those depicted in the figures.

[0014] The shapes, dimensions, thic...

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Abstract

The invention is suitable for the technical field of parallel mechanisms, and provides a four-dimensional parallel mechanism. The four-dimensional parallel mechanism is provided with a first branch chain, a second branch chain, a third branch chain, a fourth brain chain and a movable platform, wherein the first branch chain, the second branch chain and the third branch chain have the completely same structure, and each comprises a first guide rail, a first support base and a first connecting rod, the first guide rail is connected to the first support base through a sliding pair, the first support base is connected to the first connecting rod through a hooke hinge, the first connecting rod is connected to the movable platform through a spherical pair, the fourth branch chain comprises a second guide rail, a second support base, a second connecting rod and a third connecting base, the second guide rail is connected to the second support base through a sliding pair, the second support base is connected to the second connecting rod through a rotary pair, the second connecting rod is connected to the third connecting rod through a rotary pair, and the third connecting rod is connected to the movable platform through a rotary pair. The parallel mechanism has the advantages of high rigidity and strong bearing ability, and can realize one-dimensional movement and three-dimensional rotation.

Description

technical field [0001] The invention relates to a parallel mechanism, in particular to a four-dimensional parallel mechanism. Background technique [0002] The parallel robot mechanism is a multi-degree-of-freedom multi-loop closed chain in space, which has the characteristics of high rigidity, large carrying capacity, small cumulative error, good dynamic performance, and compact structure. It is widely used in the docking device and attitude of submarines and space vehicles in the military field. Controllers, cell manipulation robots in biomedical engineering, microsurgical robots, attitude adjustment devices for large radio telescopes, etc. [0003] CN105108734A discloses a fully isotropic parallel robot mechanism with three rotations and one movement. The purpose is to provide a parallel mechanism with one-to-one movement and three-dimensional rotation four-degree-of-freedom motion input and output, including a fixed platform and a moving platform) And three branch chain...

Claims

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Application Information

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IPC IPC(8): B25J9/00
CPCB25J9/0072
Inventor 不公告发明人
Owner 西安智星语知识产权服务有限公司
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