What does industrial robot resolution mean? Classification of industrial robot resolution

The resolution of an industrial robot generally refers to the minimum positioning capability of the robot's end effector in three spatial directions, usually expressed in millimeters or microns. It reflects the accuracy requirements of the industrial robot control system for the robot's position and movement, and is one of the important indicators for measuring the performance of an industrial robot.

According to different segmentation methods, the resolution of industrial robots can be divided into the following types:

Repeatability: Also known as regression accuracy, it refers to the position accuracy that a robot can achieve when performing the same task multiple times. It is usually described by a normal distribution curve, expressed as mean and standard deviation.

Zero drift: refers to the deviation of the end effector position due to various reasons after the robot has been working for a long time. This deviation will affect the work quality and stability and needs to be corrected regularly.

Motion resolution: refers to the minimum unit length of the robot actuator's end effector moving in each axial direction during continuous motion. This value is related to factors such as encoder resolution and reducer transmission ratio.

Visual resolution: refers to the resolution of the robot's visual system, that is, the minimum feature size that the robot can distinguish when it perceives the target through vision. It is usually expressed in pixels, but can also be expressed in actual length.