Robotic arm
A robotic arm is a type of
proscribed
.
Types
- Cartesian robot / Gantry robot: Used for pick and placework, application of sealant, assembly operations, handling machine tools and arc welding. It is a robot whose arm has three prismatic joints, whose axes are coincident with a Cartesian coordinator.
- collaborative robot / Cobot: Cobot applications contrast with traditional industrial robot applications in which robots are isolated from human contact. Cobot has a large variety of applicationssuch as: Commercial Application, Robotic Research, Dispensing, Material Handling, Assembly, Finishing, Quality Inspection. Cobot safety may rely on lightweight construction materials, rounded edges, and the inherent limitation of speed and force, or on sensors and software that ensures safe behavior.
- Cylindrical robot: Used for assembly operations, handling at machine tools, spot welding, and handling at die casting machines. It is a robot whose axes form a cylindrical coordinate system.
- Spherical robot / Polar robot: Used for handling machine tools, spot welding, die casting, fettling machines, gas welding and arc welding. It is a robot whose axes form a polar coordinate system.[3]
- SCARA robot: Used for pick and place work, application of sealant, assembly operations and handling machine tools. This robot features two parallel rotary joints to provide compliance in a plane.
- Articulated robot: Used for assembly operations, diecasting, fettling machines, gas welding, arc welding and spray-painting. It is a robot whose arm has at least three rotary joints.
- Parallel robot: One use is a mobile platform handling cockpit flight simulators. It is a robot whose arms have concurrent prismatic or rotary joints.
- Anthropomorphicrobot: It is shaped in a way that resembles a human hand, i.e. with independent fingers and thumbs.
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Notable robotic arms
In
cargo bay of the Space Shuttle.[6]
The Curiosity and Perseverance rovers on the planet Mars also use robotic arms.[7][8][9][10] Additionally, Perseverance has a smaller sample caching arm hidden inside its body below the rover in its caching assembly.
TAGSAM is a robotic arm for collecting a sample from a small asteroid in space on the spacecraft OSIRIS-REx.[11]
The 2018 Mars lander InSight has a robotic arm called the IDA, it has camera, grappler, is used to move special instruments.[12]
Low-cost robotic arms
In the decade of 2010 the availability of low-cost robotic arms increased substantially. Although such robotic arms are mostly marketed as hobby or educational devices, applications in laboratory automation have been proposed, like their use as autosamplers.[13][14]
Classification
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A
end-effector, also called a robot hand, can be attached to the end of the chain. As other robotic mechanisms, robot arms are typically classified in terms of the number of degrees of freedom. Usually, the number of degrees of freedom is equal to the number of joints that move the links of the robot arm. At least six degrees of freedom are required to enable the robot hand to reach an arbitrary pose (position and orientation) in three dimensional space. Additional degrees of freedom allow to change the configuration of some link on the arm (e.g., elbow up/down), while keeping the robot hand in the same pose. Inverse kinematics
is the mathematical process to calculate the configuration of an arm, typically in terms of joint angles, given a desired pose of the robot hand in three dimensional space.
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Robotic hands
The end effector, or robotic hand, can be designed to perform any desired task such as welding, gripping, spinning etc., depending on the application. For example, robot arms in
automotive assembly lines perform a variety of tasks such as welding and parts rotation and placement during assembly. In some circumstances, close emulation of the human hand is desired, as in robots designed to conduct bomb disarmament and disposal.[15]
See also
Scholia has a topic profile for Robotic arm.
- 3D printing
- Articulated robot
- Offline programming
- Robot simulator
- European Robotic Arm
- Mars Curiosity Rover - Robotic Arm
- Open-hardware robotics
- Prosthetics
- Robotics suite
- Working envelope
References
- ^ OSHA Technical Manual
- ^ "Paper on Space Robotics, pg 9" (PDF). Archived from the original (PDF) on 2017-11-16. Retrieved 2007-04-09.
- ^ "Polar Robots: Types, Applications & Advantages". 28 May 2023.
- ^ "Robot Arm and Computer Vision". YouTube. Archived from the original on 2021-12-15. Retrieved 29 July 2016.
- ^ "MeArm Open Source Robot Arm (source files)". Retrieved 21 June 2016.
- ^ IEEE Xplore:The Canadarm grasps this boom and can position it in the necessary positions to permit a complete inspection
- ^ "Curiosity Rover - Arm and Hand". JPL. NASA. Retrieved 2012-08-21.
- ^ Jandura, Louise. "Mars Science Laboratory Sample Acquisition, Sample Processing and Handling: Subsystem Design and Test Challenges" (PDF). JPL. NASA. Retrieved 2012-08-21.
- JPL. NASA. 21 August 2012. Archived from the originalon 22 August 2012. Retrieved 2012-08-21.
- ^ Billing, Rius; Fleischner, Richard (2011). "Mars Science Laboratory Robotic Arm" (PDF). 15th European Space Mechanisms and Tribology Symposium 2011. Retrieved 2012-08-21.
- ^ Hille, Karl (2018-11-16). "OSIRIS-REx is Prepared to TAG an Asteroid". NASA. Retrieved 2018-12-15.
- ^ "About the Lander | Spacecraft".
- .
- PMID 26882923.
- R&D Magazine, rdmag.com, retrieved September 13, 2012
External links
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