Real-time flexible acceleration and deceleration control algorithm based on adaptive prospection and predicative correction

Abstract

The invention relates to a real-time flexible acceleration and deceleration control algorithm based on adaptive prospection and predictive correction, which comprises the steps of carrying out prospection processing by adopting an acceleration and deceleration feasibility judgment condition to ensure the accessibility of acceleration and deceleration and the real-time performance of prospection; calculating the feeding speed of the next interpolation cycle in real time by applying a predication correction method to ensure the continuous change of speed and acceleration in the processing process; and adjusting the current prospection processing result and speed planning result under the premise of meeting the dynamic performance of machine tools to timely respond to the change of machine tool parameters in the processing. The real-time flexible acceleration and deceleration control algorithm is high in processing speed and processing accuracy. The real-time flexible acceleration and deceleration control algorithm can realize real-time flexible acceleration and deceleration control for a numerical control system, supports dynamic adjustment, improves the processing efficiency and processing quality and meets the actual processing requirements.

Description

technical field [0001] The invention relates to self-adaptive forward-looking, real-time flexible speed planning and dynamic adjustment in high-speed and high-quality machining, and belongs to the technical field of numerical control machining. Background technique [0002] Velocity planning technology is one of the key technologies of high-end CNC system motion trajectory control, and it is an important index to evaluate the performance of CNC system, which directly affects the processing efficiency and quality of CNC machine tools. At present, high-speed and high-quality machining put forward higher requirements on the acceleration and deceleration control capabilities of CNC machine tools. On the one hand, it is required that the tool can move from the current position to the next position in the shortest time; on the other hand, it is required In the process of tool movement, ensure the smooth operation of the CNC machine tool, and avoid impact, out of step, overtravel o...

AI Technical Summary

Problems solved by technology

However, the implementation process of the above method is relatively complicated, involving multiple parameters, and requires a lot of time for numerical calculation

These algorithms mostly use offline speed planning, and in the process of processing, when the processing parameters change, the CNC machine tool cannot respond in time, and cannot well meet the actual processing needs.

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