期刊
ROBOTICA
卷 37, 期 7, 页码 1161-1173出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0263574718000395
关键词
Parallel mechanisms; Type synthesis; Conceptual design
类别
资金
- National Key Basic Research Program [2014CB046603]
- National Natural Science Foundation of China [51420105007]
- National Key Research and Development Program [2017YFB1301800]
- EU H2020-MSCA-RISE [734272]
This paper presents a simple and highly visual approach for the type synthesis of a family of overconstrained parallel mechanisms that have one translational and two rotational movement capabilities. It considers, especially, mechanisms offering the accuracy and dynamic response needed for machining applications. This family features a spatial limb plus a member of a class of planar symmetrical linkages, the latter connected by a revolute joint either to the machine frame at its base link or to the platform at its output link. Criteria for selecting suitable structures from among numerous candidates are proposed by considering the realistic practical requirements for reconfigurability, movement capability, rational component design and so on. It concludes that a few can simultaneously fulfil the proposed criteria, even though a variety of structures have been presented in the literature. Exploitation of the proposed structures and evaluation criteria then leads to a novel five degrees of freedom hybrid module named TriMule. A significant potential advantage of the TriMule over the Tricept arises because all the joints connecting the base link and the machine frame can be integrated into one single, compact part, leading to a lightweight, cost effective and flexible design particularly suitable for configuring various robotized manufacturing cells.
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