- Parallel robot
A parallel robot is a device for performing manipulations, where the
end effectoris connected to the base via multiple kinematic chains. Any two chains thus form a closed loop. This is opposed to classical open loop mechanisms such as the serial robot robotic arm(e.g. articulated robots such as jointed arms).
Parallel robots are usually faster than traditional articulated robots, since the motors can be mounted on the base, thus saving weight. They are also stronger than serial robots because the
end effectoris connected to more links. Another benefit is that the error of the end effectoris less than the errors of serial robots since the errors are averaged (as opposed to being additive as in serial robots).However, parallel robots are usually more limited in the workspace; for instance, they generally cannot reach around obstacles. The calculations involved in performing a desired manipulation (forward kinematics) are also usually harder and have more than one unique solution (maybe up to 40 solutions!)
Two examples of popular parallel robots are the
Stewart platformand the Delta robot.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Robot kinematics — is the study of the motion (kinematics) of robots. In a kinematic analysis the position, velocity and acceleration of all the links are calculated without considering the forces that cause this motion. The relationship between motion, and the… … Wikipedia
Robot software — is the coded commands that tell a mechanical device (known as a robot) what tasks to perform and control its actions. Robot software is used to perform tasks and automate tasks to be performed. Programming robots is a non trivial task. Many… … Wikipedia
Robot calibration — is the process of identifying the real geometrical parameters in the kinematic structure of an industrial robot (IR), i.e., the relative position and orientation of links and joints in the robot.A calibrated robot has a higher absolute… … Wikipedia
Robot (camera) — Robot is a German imaging company most known for traffic surveillance (Traffipax), bank security and clockwork cameras.Originally created as a brand in 1934 of Otto Berning and Co its, since 1999, part of the JENOPTIK Gruppe of optical companies … Wikipedia
Robot — This article is about mechanical robots. For other uses of the term, see robot (disambiguation). For software agents, see Bot. ASIMO (2000) at the Expo 2005, a humanoid robot … Wikipedia
Robot-assisted heart surgery — Minimally invasive robot assisted heart surgery (cardiac surgery) is a procedure that allows heart surgery to be performed through tiny incisions in the patient’s chest. Traditional “open” surgery requires that surgeons make incisions large… … Wikipedia
Parallel manipulator — A parallel manipulator consists of a fixed base platform, connected to an end effector platform by means of a number of legs . These legs often consist of an actuated prismatic joint, connected to the platforms through passive (i.e. not actuated) … Wikipedia
Robot Delta — Le Robot Delta est un robot ayant un bras de manipulation formé de 3 parallélogrammes, ce qui, vu sa légèreté, lui permet d être rapide et de garder sa charge dans la même orientation. Il fait partie de la famille des robots parallèles parfois… … Wikipédia en Français
Delta robot — Sketchy, a portrait drawing delta robot A delta robot is a type of parallel robot. It consists of three arms connected to universal joints at the base. The key design feature is the use of parallelograms in the arms, which maintains the… … Wikipedia
Dual! Parallel Trouble Adventure — デュアル!ぱられルンルン物語 (Dyuaru! Parare Runrun Monogatari) Genre Comedy, Mecha TV anime Directed by … Wikipedia