Cartesian parallel manipulators: Difference between revisions

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== Description ==
Cartesian parallel manipulators are in the intersection of two broader categories of manipulators: [[Cartesian coordinate robot|Cartesian]] and [[Parallel manipulator|parallel]]. Cartesian manipulators are driven by mutually perpendicular linear actuators. They generally have a one-to-one correspondence between the linear positions of the actuators and the ''X, Y, Z'' position coordinates of the moving platform, making them easy to control. Furthermore, Cartesian manipulators do not change the orientation of the moving platform. Most commonly, [[Cartesian coordinate robot|Cartesian manipulators]] are [[Serial manipulator|serial]]-connected; i.e., they consist of a single [[Linkage (mechanical)|kinematic linkage]] chain, i.e. the first linear actuator moves the second one and so on. On the other hand, Cartesian parallel manipulators are parallel-connected, i.e. they consist of multiple kinematic linkages. Parallel-connected manipulators have innate advantages<ref>Z. Pandilov, V. Dukovski, Comparison of the characteristics between serial and parallel robots, Acta Technica Corviniensis-Bulletin of Engineering, Volume 7, Issue 1, Pages 143-160</ref> in terms of stiffness,<ref>{{Cite journal|last1=Geldart|first1=M|last2=Webb|first2=P|last3=Larsson|first3=H|last4=Backstrom|first4=M|last5=Gindy|first5=N|last6=Rask|first6=K|date=2003|title=A direct comparison of the machining performance of a variax 5 axis parallel kinetic machining centre with conventional 3 and 5 axis machine tools|url=http://dx.doi.org/10.1016/s0890-6955(03)00119-6|journal=International Journal of Machine Tools and Manufacture|volume=43|issue=11|pages=1107–1116|doi=10.1016/s0890-6955(03)00119-6|issn=0890-6955|url-access=subscription}}</ref> precision,<ref>{{Cite journal|date=1997|title=Vibration control for precision manufacturing using piezoelectric actuators|url=http://dx.doi.org/10.1016/s0141-6359(97)81235-4|journal=Precision Engineering|volume=20|issue=2|pages=151|doi=10.1016/s0141-6359(97)81235-4|issn=0141-6359|url-access=subscription}}</ref> dynamic performance<ref>R. Clavel, inventor, S.A. SovevaSwitzerland, assignee. Device for the movement and positioning of an element in space, USA patent number, 4,976,582 (1990)</ref> <ref>{{Cite book|last=Prempraneerach|first=Pradya|title=2014 International Computer Science and Engineering Conference (ICSEC) |chapter=Delta parallel robot workspace and dynamic trajectory tracking of delta parallel robot |date=2014|chapter-url=http://dx.doi.org/10.1109/icsec.2014.6978242|pages=469–474 |publisher=IEEE|doi=10.1109/icsec.2014.6978242|isbn=978-1-4799-4963-2|s2cid=14227646 }}</ref> and in supporting heavy loads.<ref> 
 
 Stewart D. A Platform with Six Degrees of Freedom. Proceedings of the Institution of Mechanical Engineers. 1965;180(1):371-386. doi:10.1243/PIME_PROC_1965_180_029_02
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==== Tripteron ====
[[File:Tripteron robot.jpg|thumb|Tripteron]]
The 3-DoF Tripteron<ref>Gosselin, C. M., and Kong, X., 2004, “Cartesian Parallel Manipulators,” U.S. Patent No. 6,729,202</ref> <ref>Xianwen Kong, Clément M. Gosselin, Kinematics and Singularity Analysis of a Novel Type of 3-CRR 3-DOF Translational Parallel Manipulator, The International Journal of Robotics Research Vol. 21, No. 9, September 2002, pp. 791-7</ref> <ref>{{Citation|last1=Kong|first1=Xianwen|title=Type Synthesis of Linear Translational Parallel Manipulators|date=2002|url=http://dx.doi.org/10.1007/978-94-017-0657-5_48|work=Advances in Robot Kinematics|pages=453–462|place=Dordrecht|publisher=Springer Netherlands|isbn=978-90-481-6054-9|access-date=2020-12-14|last2=Gosselin|first2=Clément M.|doi=10.1007/978-94-017-0657-5_48 |url-access=subscription}}</ref> <ref>{{Citation|last1=Kim|first1=Han Sung|title=Evaluation of a Cartesian Parallel Manipulator|date=2002|url=http://dx.doi.org/10.1007/978-94-017-0657-5_3|work=Advances in Robot Kinematics|pages=21–28|place=Dordrecht|publisher=Springer Netherlands|isbn=978-90-481-6054-9|access-date=2020-12-14|last2=Tsai|first2=Lung-Wen|doi=10.1007/978-94-017-0657-5_3 |url-access=subscription}}</ref><ref>{{Citation|last1=Elkady|first1=Ayssam|title=Cartesian Parallel Manipulator Modeling, Control and Simulation|date=2008-04-01|work=Parallel Manipulators, towards New Applications|publisher=I-Tech Education and Publishing|isbn=978-3-902613-40-0|last2=Elkobrosy|first2=Galal|last3=Hanna|first3=Sarwat|last4=Sobh|first4=Tarek|doi=10.5772/5435 |doi-access=free}}</ref> member of the Multipteron family has three parallel-connected kinematic chains consisting of a linear actuator (active prismatic ''<u>P</u>'' joint) in series with three revolute ''R'' joints ''3(<u>P</u>RRR).'' Similar manipulators, with three parallelogram ''Pa'' limbs ''3(<u>PR</u>PaR)'' are the Orthoglide<ref>{{Citation|last1=Wenger|first1=P.|title=Kinematic Analysis of a New Parallel Machine Tool: The Orthoglide|date=2000|url=http://dx.doi.org/10.1007/978-94-011-4120-8_32|work=Advances in Robot Kinematics|pages=305–314|place=Dordrecht|publisher=Springer Netherlands|isbn=978-94-010-5803-2|access-date=2020-12-14|last2=Chablat|first2=D.|doi=10.1007/978-94-011-4120-8_32 |s2cid=5485837 |arxiv=0707.3666}}</ref> <ref>{{Cite journal|last1=Chablat|first1=D.|last2=Wenger|first2=P.|date=2003|title=Architecture optimization of a 3-DOF translational parallel mechanism for machining applications, the orthoglide|url=http://dx.doi.org/10.1109/tra.2003.810242|journal=IEEE Transactions on Robotics and Automation|volume=19|issue=3|pages=403–410|doi=10.1109/tra.2003.810242|issn=1042-296X|arxiv=0708.3381|s2cid=3263909 }}</ref> and Parallel cube-manipulator.<ref>{{Cite journal|last1=Liu|first1=Xin-Jun|last2=Jeong|first2=Jay il|last3=Kim|first3=Jongwon|date=2003-10-24|title=A three translational DoFs parallel cube-manipulator|url=http://dx.doi.org/10.1017/s0263574703005198|journal=Robotica|volume=21|issue=6|pages=645–653|doi=10.1017/s0263574703005198|s2cid=35529910 |issn=0263-5747|url-access=subscription}}</ref> The Pantepteron<ref>{{Cite journal|last1=Briot|first1=S.|last2=Bonev|first2=I. A.|date=2009-01-06|title=Pantopteron: A New Fully Decoupled 3DOF Translational Parallel Robot for Pick-and-Place Applications|url=http://dx.doi.org/10.1115/1.3046125|journal=Journal of Mechanisms and Robotics|volume=1|issue=2|doi=10.1115/1.3046125|issn=1942-4302}}</ref> is also similar to the Tripteron, with pantograph linkages to speed up the motion of the platform.
 
==== Qudrupteron ====
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=== Isoglide ===
The Isoglide family<ref>{{Cite journal|last=Gogu|first=Grigore|date=2004|title=Structural synthesis of fully-isotropic translational parallel robots via theory of linear transformations|url=http://dx.doi.org/10.1016/j.euromechsol.2004.08.006|journal=European Journal of Mechanics - A/Solids|volume=23|issue=6|pages=1021–1039|doi=10.1016/j.euromechsol.2004.08.006|bibcode=2004EJMS...23.1021G |issn=0997-7538|url-access=subscription}}</ref> <ref>{{Cite journal|last=Gogu|first=Grigore|date=2007|title=Structural synthesis of fully-isotropic parallel robots with Schönflies motions via theory of linear transformations and evolutionary morphology|url=http://dx.doi.org/10.1016/j.euromechsol.2006.06.001|journal=European Journal of Mechanics - A/Solids|volume=26|issue=2|pages=242–269|doi=10.1016/j.euromechsol.2006.06.001|bibcode=2007EJMS...26..242G |issn=0997-7538|url-access=subscription}}</ref><ref>{{Citation|chapter=Structural synthesis|date=2008|chapter-url=http://dx.doi.org/10.1007/978-1-4020-5710-6_5|series=Solid Mechanics and its Applications |volume=149 |pages=299–328|place=Dordrecht|publisher=Springer Netherlands|doi=10.1007/978-1-4020-5710-6_5 |isbn=978-1-4020-5102-9|access-date=2020-12-14|title=Structural Synthesis of Parallel Robots }}</ref><ref>{{Cite journal|last=Gogu|first=G.|date=2009|title=Structural synthesis of maximally regular T3R2-type parallel robots via theory of linear transformations and evolutionary morphology|url=http://dx.doi.org/10.1017/s0263574708004542|journal=Robotica|volume=27|issue=1|pages=79–101|doi=10.1017/s0263574708004542|s2cid=32809408 |issn=0263-5747|url-access=subscription}}</ref> includes many different Cartesian parallel manipulators from 2-6 DoF.
 
=== Xactuator ===