It can be divided into several different types:
I. Joint velocity:
This refers to the rotational speed of each joint of a robot, usually measured in degrees per second (°/s). For example, a six-axis robot may have multiple joints, and the movement speed of each joint will be different.
II. End effector speed (linear velocity):
The speed of an end effector (such as a gripper, welding gun, or spray nozzle) is the linear speed of its movement in space, usually measured in meters per second (m/s). The speed of the end effector is affected by factors such as the robot's range of motion, load, and drive method.
III. Path Speed:
This refers to the actual speed at which the robot moves along a specified trajectory. This speed takes into account factors such as the robot's motion path, acceleration, and deceleration, and is usually measured in millimeters per second (mm/s) or meters per second (m/s).
Currently, industrial robot product manuals mainly provide the maximum rotational speed of each joint, while the spatial motion speed of the robotic arm's end effector is rarely explicitly stated in the product description. However, simulation software and on-site testing can be used to determine whether it meets the user's needs.
Factors affecting the speed of industrial robots:
A robot's speed is affected by several factors, including the application, load, joint flexibility, and the precision of the control system. This is because the maximum speed of a robotic arm varies depending on its configuration.
For example, in a certain application of a robot, the majority of the motion is done using one or two axes. In that case, the robot will be much slower than in another application where the motion is done using five or six axes, because the maximum speed of one or two axes is smaller than that of five or six axes.
In addition, programmers can also improve robot speed through program optimization techniques, such as the application of trajectory overlays and the setting of load variables.
Generally, high-precision industrial robots typically strike a balance between speed and stability to ensure that they can maintain high-precision positioning even when operating at high speeds.
