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  4. Towards a new Delta robot: an inverted Delta
 
conference paper not in proceedings

Towards a new Delta robot: an inverted Delta

Mohamed, Bouri  
•
Reymond, Clavel  
•
Mohamed-Yassine, Zerrouki
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2004
International Symposium on Robotics, ISR

In the way of developing fast parallel robots, the following work proposes a development of a new delta robot. This robot is a 3 d.o.f. parallel robot based on a Delta-like kinematics [Clavel 88, 92]. It is actually an inverted Delta in which the parallel bars are inverted towards the basis. There are two principal advantages of this structure. The first is that there is less links between the actuators and the support basis. The second concerns the fact that end- effector naturally moves without changing the direction of the motors. This last characteristic leads to a fastest structure. This paper is organized as follows: At first, we will present the previous version of the micro-delta [Rey 94] and the actuator trajectories when carrying out a typical pick and place operations. The second part concerns the proposition of this new kinematics (called inverted delta), its optimization, simulation, design and the mechanics. A comparison between the actuator’s trajectories will be shown to stress on the improvements on the fastness of the structure. Finally, the motion control and performances are shown to prove the efficiency of such structure. The experimental position control is presented when using a simplified feed forward controller that seems to be quit sufficient for the desired performances (around 0.1mm at the end effector). This structure has been actually developed for the pick and place operations in the market where there is a need of fast operations relative to small workspace.

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Type
conference paper not in proceedings
Author(s)
Mohamed, Bouri  
Reymond, Clavel  
Mohamed-Yassine, Zerrouki
Willy, Maeder
Date Issued

2004

Subjects

Parallel robot

•

delta robot

•

inverted delta

•

3 d.o.f

•

fast robotics

•

real time

•

packaging

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSRO  
Event nameEvent placeEvent date
International Symposium on Robotics, ISR

Paris, France

March 23-26, 2004

Available on Infoscience
January 23, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/45993
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