2results about How to "Reduce speed fluctuations" patented technology

This invention relates to the field of CNC machining and motion control technology, specifically to a method, system, and storage medium for interpolation connection processing of S-shaped speed curves. This method addresses the speed fluctuations and uneven machining marks caused by the asynchronous connection points between segments and the interpolation cycle in existing global S-shaped speed planning by proposing a reverse extension compensation mechanism. The steps include: when entering a new curve segment for interpolation, if there is residual motion and the motion stage is continuous, the current motion stage is extended backward by one interpolation cycle in the time domain; by solving the displacement equation, the historical time point corresponding to the residual motion in the current stage is accurately calculated; and the system's time state is corrected accordingly, thereby achieving smooth and accurate connection between segments. This invention effectively eliminates the deviation between interpolation commands and speed planning, solves the speed fluctuation problem caused by toolpath deflection, makes the tool marks more uniform, and improves machining quality.