Two-rotation and one-move series-parallel parallel driving swing head mechanism with follow-up constraint

A hybrid and follow-up technology, applied to manipulators, program-controlled manipulators, manufacturing tools, etc., can solve the problems of large space occupied by the drive rod, singularity of layout form, and high requirements for servo motors, so as to avoid singularity problems and structure Compact and dynamic performance
CN110480600AActive Publication Date: 2019-11-22YANSHAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
YANSHAN UNIV
Publication Date
2019-11-22

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Abstract

The invention provides a two-rotation and one-move series-parallel parallel driving swing head mechanism with follow-up constraint. The two-rotation and one-move series-parallel parallel driving swinghead mechanism comprises a mounting frame, a stretching-out body, a first stretching-out cylinder, a second stretching-out cylinder, a first linear driving unit, a second linear driving unit, a thirdlinear driving unit, a first connecting rod, a second connecting rod, a third connecting rod, a movable platform and an electric spindle. A parallel connection part of a series-parallel swing head only comprises two main driving branches and one follow-up constraint branch, thus compared with a parallel connection machining head with four or more moving branches, the number of branched chains issmall, and the two-rotation and one-move series-parallel parallel driving swing head mechanism has the characteristics of compact structure, high rigidity, large working space and good dynamic performance.
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Description

technical field

[0001] The invention belongs to the technical field of industrial manufacturing of numerical control machine tools, and in particular relates to a two-rotation-one-shift hybrid parallel drive swing head mechanism with follow-up constraints. Background technique

[0002] Compared with the series mechanism, the parallel processing head has the advantages of high rigidity, high precision, and many degrees of freedom. It can realize curved surface processing in the field of mechanical processing and effectively improve the processing accuracy. and other industries have important influence.

[0003] At present, most parallel processing heads are three-degree-of-freedom parallel mechanisms, such as the Z3 spindle head. Chinese patent 200910228104.7 discloses a parallel mechanism that can realize two-dimensional translation and two-dimensional rotation, including a fixed frame, a moving platform and four branch chain structures. The branch chain structure is compos...

Claims

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