Classification of industrial robot resolution

Create Date: 2024-8-30 12:03:23|Source: KUKA

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

                               Classification of industrial robot resolution

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

Repeatability accuracy: Also known as regression accuracy, it refers to the accuracy of the azimuth that the robot can reproduce when performing the same mission repeatedly. It is generally depicted with a normal distribution curve, which is indicated as the mean and standard deviation.

Zero drift: refers to the shift of the position of the end actuator due to various reasons after a long period of operation. This drift affects the quality and stability of the work and needs to be corrected at regular intervals.

Motion resolution: refers to the minimum unit length of the robot actuator in successive movements, and the end actuator moves in each axis. This value is related to the encoder resolution, reducer ratio and other factors.

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

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