manipulatorsdevices

Manipulators devices, commonly referred to as robotic manipulators, are mechanical systems designed to interact with and move objects. A typical manipulator consists of a base, a series of links joined by actuated joints, and an end effector such as a gripper, welder, or suction cup. The arrangement of joints defines the manipulator's degrees of freedom and its reach and dexterity. They are used to perform tasks with precision, repeatability, and speed beyond human capability.

Manipulators come in several kinematic configurations. Articulated (multi-jointed arms) is common in industry; cylindrical, spherical, Cartesian (rectangular), and parallel manipulators are used for specialized tasks. Telemanipulators and master-slave systems extend manipulation capability over distance, often with haptic feedback.

Core components include actuators (electric motors, hydraulic, or pneumatic cylinders), joints, links, sensors (position encoders, force/torque sensors, cameras), and end effectors. Control software governs kinematics, trajectory planning, and interaction forces. Kinematic analysis uses forward and inverse kinematics to relate joint motions to Cartesian position; the Jacobian relates joint velocities to end-effector velocity. Controllers may implement position, velocity, torque, or impedance/force control regimes.

Applications span manufacturing (welding, painting, picking, packaging), medical and surgical robotics, space and underwater manipulation, and research. Design trade-offs involve payload, reach, repeatability, stiffness, speed, and safety. Safety standards such as ISO 10218 for industrial robots and ISO/TS 15066 for collaborative robots guide risk assessment and operation.

Historically, robotic manipulators emerged in the mid-20th century and have steadily expanded in capability and autonomy, from early fixed-base arms to modern autonomous and collaborative systems.