Construction of the robotic arm
![Picture](/uploads/3/7/0/4/37048051/7422399.png)
How
they work:
A typical robotic arm is made up of seven metal segments, joined
by six joints. The computer controls the robot by rotating individual step
motors connected to each joint. Unlike ordinary motors, step motors move in
exact increments. This allows the computer to move the arm very precisely,
repeating exactly the same movement over and over again. The robot uses motion
sensors to make sure it moves just the right amount. The robotic arm's job is to
move an end effector from place to place. The end effector can be designed to
perform any desired task such as welding, gripping, spinning etc., depending on
the application. The end effector is the component of the arm that completes the
actual task that is required, the other sections of the arm focus on getting the
end effector into the desired position. The end effector can usually be swapped
and changed to suit different tasks. End effectors often have built-in pressure
sensors that tell the computer how hard the robot is gripping a particular
object. This keeps the robot from dropping or breaking whatever it's
carrying.
There are many different types of Robotic arms:
Cartesian robot / Gantry robot:
Used for pick and place work, application of sealant, assembly operations,
handling machine tools and arc welding. It's a robot whose arm has three
prismatic joints, whose axes are coincident with a Cartesian
coordinator.
Cylindrical robot:
Used for assembly operations, handling at machine tools, spot welding, and
handling at diecasting machines. It's a robot whose axes form a cylindrical
coordinate system.
Spherical robot / Polar robot (such as the Unimate):
Used for handling at machine tools, spot welding, diecasting, fettling machines,
gas welding and arc welding. It's a robot whose axes form a polar coordinate
system.
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's a robot whose arm has at least three rotary
joints.
Parallel robot:
One use is a mobile platform handling cockpit flight simulators. It's a robot
whose arms have concurrent prismatic or rotary joints.
Anthropomorphic robot:
Shaped in a way that resembles a human hand, i.e. with independent fingers and
thumbs.
they work:
A typical robotic arm is made up of seven metal segments, joined
by six joints. The computer controls the robot by rotating individual step
motors connected to each joint. Unlike ordinary motors, step motors move in
exact increments. This allows the computer to move the arm very precisely,
repeating exactly the same movement over and over again. The robot uses motion
sensors to make sure it moves just the right amount. The robotic arm's job is to
move an end effector from place to place. The end effector can be designed to
perform any desired task such as welding, gripping, spinning etc., depending on
the application. The end effector is the component of the arm that completes the
actual task that is required, the other sections of the arm focus on getting the
end effector into the desired position. The end effector can usually be swapped
and changed to suit different tasks. End effectors often have built-in pressure
sensors that tell the computer how hard the robot is gripping a particular
object. This keeps the robot from dropping or breaking whatever it's
carrying.
There are many different types of Robotic arms:
Cartesian robot / Gantry robot:
Used for pick and place work, application of sealant, assembly operations,
handling machine tools and arc welding. It's a robot whose arm has three
prismatic joints, whose axes are coincident with a Cartesian
coordinator.
Cylindrical robot:
Used for assembly operations, handling at machine tools, spot welding, and
handling at diecasting machines. It's a robot whose axes form a cylindrical
coordinate system.
Spherical robot / Polar robot (such as the Unimate):
Used for handling at machine tools, spot welding, diecasting, fettling machines,
gas welding and arc welding. It's a robot whose axes form a polar coordinate
system.
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's a robot whose arm has at least three rotary
joints.
Parallel robot:
One use is a mobile platform handling cockpit flight simulators. It's a robot
whose arms have concurrent prismatic or rotary joints.
Anthropomorphic robot:
Shaped in a way that resembles a human hand, i.e. with independent fingers and
thumbs.