How to understand the positioning accuracy and repetitive positioning accuracy of automatic sliding table

There are many categories of accuracy for automatic slide tables, among which the most concerned are positioning accuracy and repeat positioning accuracy, as they directly affect the accuracy of automatic slide tables. So, how do we understand the positioning accuracy and repetitive positioning accuracy of an automatic slide table? Next, let's learn together

What is positioning accuracy?

Schematic diagram of positioning accuracy

Starting from a certain reference point, position in a single direction at certain intervals throughout the entire travel range. Calculate the difference between the actual measurement values and the target values at different positioning points, and define the difference between the maximum and minimum values as the positioning accuracy.

What is meant by repeated positioning accuracy?

Schematic diagram of repeated positioning accuracy

At any position on the platform (at both ends or center, etc.), perform multiple positioning from the same direction and calculate the maximum deviation value of the stopping position. Define the maximum value in its numerical value as the repeat positioning accuracy.