Multi-program-segment continuous acceleration and deceleration control method based on advanced-filter technology

Abstract

The invention relates to a multi-program-segment continuous acceleration and deceleration control method based on a advanced-filter technology, comprising the following steps of: carrying out advanced planning according to processing program data of an input workpiece and determining advanced planning parameters of all program segments; carrying out corresponding linear acceleration and deceleration planning by utilizing the planning parameters of all program segments and carrying out interpolation on speed values; carrying out segmental sliding average filtering on the speed values of all segments subjected to the interpolation to obtain new speed values, wherein the advanced planning calculation of the processing program data of the input workpiece comprises the following steps of: determining transition point speeds among all program segments according to the processing program data of the workpiece and a transition point algorithm; determining the planning parameters of all program segments according to a planning parameter solving algorithm; and determining a new displacement in the linear deceleration planning according to a displacement compensation algorithm. By combining an improved linear acceleration and deceleration planning method, a filtering technology and a prospect technology, the invention realizes the multi-program-segment continuous planning, improves the processing efficiency and the calculation efficiency and is good in smoothness and easy to realize.

Description

technical field [0001] The invention relates to a high-speed numerical control system control technology, in particular to a multi-program segment continuous acceleration and deceleration control method based on the look-ahead-filtering technology. Background technique [0002] High-speed and high-precision is the current development trend of CNC systems, and acceleration and deceleration control is one of the core technologies of high-speed CNC systems. Commonly used acceleration and deceleration control methods include linear acceleration and deceleration (speed continuous), S-curve acceleration and deceleration (acceleration continuous), and acceleration smooth acceleration and deceleration (acceleration continuous). Among them, the linear acceleration and deceleration control method is widely used because of its small amount of calculation and simple programming, but it is not suitable for high-speed and high-precision machining of CNC machine tools because of sudden acc...

AI Technical Summary

Problems solved by technology

The multi-segment continuous acceleration and deceleration control technology that combines forward-looking technology, filtering technology and improved linear acceleration and deceleration method has not been reported yet.

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