Accuracy analysis of 3-DOF planar parallel robots
نویسندگان
چکیده
منابع مشابه
Accuracy analysis of 3-DOF planar parallel robots
Three-degree-of-freedom planar parallel robots are increasingly being used in applications where precision is of the utmost importance. Clearly, methods for evaluating the accuracy of these robots are therefore needed. The accuracy of well designed, manufactured, and calibrated parallel robots depends mostly on the input errors (sensor and control errors). Dexterity and other similar performanc...
متن کاملSingularity Analysis of 3-DOF Planar Parallel Mechanisms
This paper presents the results of a systematic study of the singular configurations of 3-DOF planar parallel mechanisms with three identical serial chains. Only prismatic and revolute kinematic pairs are considered. From the point of view of singularity analysis, there are ten different architectures. All of them are examined; the nature of all possible singular configurations are discussed an...
متن کاملGraphical Singularity Analysis of 3-dof Planar Parallel Manipulators
This paper introduces a new approach to identify singularities of planar parallel manipulators (PPMs). This method is based on Maxwell’s reciprocal figure theory which establishes a duality between self-stress frameworks and reciprocal figures. We use line geometry tools to introduce a new graphical construction called the Mechanism’s Line of action Graph (MLG). The MLG is introduced in order t...
متن کاملOn the design of reactionless 3-DOF planar parallel mechanisms
A reactionless machine will not apply reaction forces and moments on the mounting base during motion. This article presents the theory for design of a reactionless planar parallel mechanism. The salient features of this design are: (i) it uses auxiliary parallelograms to locate the center of mass of each leg at the base, (ii) choice of geometric and inertial parameters to satisfy the reactionle...
متن کاملKinematic calibration of a 3-DOF planar parallel robot
Purpose – The purpose of this paper is to describe a calibration method developed to improve the absolute accuracy of a novel three degrees-of-freedom planar parallel robot. The robot is designed for the precise alignment of semiconductor wafers and, even though its complete workspace is slightly larger, the accuracy improvements are performed within a target workspace, in which the positions a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mechanism and Machine Theory
سال: 2008
ISSN: 0094-114X
DOI: 10.1016/j.mechmachtheory.2007.04.002