Method for controlling a motion controller based on electromechanical coupling modes
By preprocessing and frequency analysis of the three-dimensional vibration signals during the cutting process, a high-frequency micro-amplitude superimposed signal is generated to suppress chatter, which solves the problems of reduced machining accuracy and equipment damage caused by cutting chatter, and realizes early accurate judgment and continuous suppression of chatter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FOSHAN DMT INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Cutting chatter reduces machining accuracy, affects product qualification rate, and in severe cases can cause equipment failures such as tool chipping and spindle damage, resulting in significant economic losses.
By acquiring the three-dimensional vibration signals of the cutting process collected by the accelerometer, anti-aliasing filtering, detrending term processing and sliding window storage are performed to generate preprocessed vibration data; the chatter frequency is calculated based on the short-time Fourier transform, and a high-frequency micro-amplitude superimposed signal is generated by combining the modal parameter set, which is superimposed with the original CNC position command to generate the final servo axis motion command, and the suppression effect is evaluated in real time for adaptive adjustment.
It enables early and accurate detection and suppression of chatter, ensuring processing precision, avoiding equipment failure, and improving product qualification rate and equipment lifespan.
Smart Images
Figure CN122411272A_ABST