What is a parallel robot?
A parallel robot, also called a parallel manipulator, is a mechanism that represents a very good performance in terms of stability, rigidity and accuracy for handling heavy loads. Parallel robots consist of three or more rotary or prismatic axes that operate in parallel with each other. They have been used in a number of applications such as flight simulators and astronomy, and grow in popularity in the machine tool industry. Some examples of these types of robots are Robots Delta, Hexapod and Tricept.
Theoretical works of English and French geometrians, which are related to parallel mechanisms, and especially hexapods, date for many centuries. Homer described pedestrians in his epic work Illiad . Aristotle imagined mechanisms that listened to the will of others. The first parallel robot came only 17 years after creating the term "robot" in 1921. For automated spraying, it is generally considered the first industrial parallel robot proposed.
As for robotsKu, the end effector is a solid body at the end of the robotic arm. For each robot connection, the degree of connection is the number of rigid bodies connected to the joint link. In the cinematic strings with a closed loop it has one of the links, but not the base, the degree of connection larger or equal to three. Parallel robots are mechanisms where the end effector is connected to the base through several kinematic chains that form a closed loop.
Since the ultimate parallel robot effector is supported in several places, resulting in a high structural stiffness. Many legs connect the end effector to the base platform. The construction of the parallel robot is light. These properties allow parallel robots to be able to have a wide range of movement. Their main disadvantage, however, is that they have a limited working space because the legs can collide.
Multiple folders used for industrial purposes are rObot known as a serial manipulator. It is built to form the shape of the elbow, wrist and shoulder. One of the main advantages of serial manipulators over parallel robots is their large workspace. Serial manipulators are the most common type of industrial robots.
Advances in robots' kinematics, studying robots, led to applications in various fields, including surgery, production, locomine and biomechanics. Robot kinematics can be divided into a mobile robot kinematics, humanoid kinematics, parallel kinematics of robot and serial manipulator kinematics. Analyzes of speed, acceleration and positions of all links are calculated regardless of the forces that cause movement.
Other parallel robot applications have high accuracy locations. An example of this is the assembly of printed circuits. The parallel robotjako micro manipulator can also work for serial manipulators mounted on the final effector.