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公开(公告)号：US10955084B2
公开(公告)日：2021-03-23
申请号：US16545382
申请日：2019-08-20
发明人： Gheorghe Olea
摘要： A positioning table device with six or fewer degrees of freedom and redundancy. Four modular legs extend from a base to a table. Each leg has three joints. In one embodiment, the bottom joint is planar and active, the middle joint is prismatic and passive, and the top joint is spherical and passive. In another embodiment, fewer than six degrees of freedom is achieved by reducing the number of degrees of freedom of selected joints. In another embodiment, the middle joint is active, and the bottom and top joints are passive.
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公开(公告)号：US11458579B2
公开(公告)日：2022-10-04
申请号：US17301036
申请日：2021-03-23
发明人： Gheorghe Olea
摘要： A redundant positioning table device with six or fewer degrees of freedom having four modular legs extended from a base to a table, each legs being with three levels and the same types of joints. In one embodiment, the bottom joint is planar and active, the middle joint is prismatic and passive, and the top joint is spherical and passive. In another embodiment, the bottom joint is prismatic and passive, the middle joint is planar and active, and the top joint is spherical and passive. Fewer than six degrees of freedom is achieved by reducing the number of degrees of freedom of designated joints.
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公开(公告)号：US20170113347A1
公开(公告)日：2017-04-27
申请号：US15315962
申请日：2015-05-27
发明人： Franz EHRENLEITNER
CPC分类号： B25J9/1638 , B25J18/002 , B25J19/0008
摘要： The invention relates to a method and a device (1) for compensating the weight (G) acting on a manipulator (2), wherein a variable counterforce (F) is generated, wherein the counterforce (F) generated is applied to the manipulator (2) by means of a supporting kinematic system (12) that contacts the manipulator in a force application region (22), and wherein a value of the counterforce (F) corresponds at least substantially to a value of the weight (G) acting on the force application region on account of acceleration due to gravity, and the counterforce (F) is directed at least substantially parallel and in the opposite direction to the acceleration due to gravity. The invention also relates to a system comprising a device (1) and a manipulator (2).
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公开(公告)号：US20210291306A1
公开(公告)日：2021-09-23
申请号：US17301036
申请日：2021-03-23
发明人： Gheorghe Olea
摘要： A redundant positioning table device with six or fewer degrees of freedom having four modular legs extended from a base to a table, each legs being with three levels and the same types of joints. In one embodiment, the bottom joint is planar and active, the middle joint is prismatic and passive, and the top joint is spherical and passive. In another embodiment, the bottom joint is prismatic and passive, the middle joint is planar and active, and the top joint is spherical and passive. Fewer than six degrees of freedom is achieved by reducing the number of degrees of freedom of designated joints.
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公开(公告)号：US10384341B2
公开(公告)日：2019-08-20
申请号：US15100828
申请日：2014-12-05
发明人： Gheorghe Olea
摘要： The present invention is related a redundant parallel positioning table device. More particularly, the present invention relates to a redundant parallel positioning table device for a precise positioning of heavy load samples, instrument and/or apparatus, e.g. in the context of diffractometer machines for synchrotron facilities.
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