Proposal for Ball Screw Stretch Compensation Function

Patent granted: Ball screw thermal displacement correction function for compensating ball screw elongation.

The ball screw elongation compensation function detects the rotation speed of the ball screw to predict the amount of elongation and incorporates this into the movement amount to prevent a decrease in positioning accuracy. In pursuit of higher precision and to improve the machining accuracy of our machining centers, we have obtained a patent through years of effort. Since it is sensorless, it can improve machining accuracy without additional costs, making it a beneficial feature for our customers. ■ Reduces elongation of ball screws without pre-tension by about one-third ■ No warm-up operation required ■ Sensorless with no failures ■ Fully automatic with initial settings completed It is planned to be standard equipment on our machining centers.

Machining Center