Numerical control machining method and system, computer equipment and storage medium

Abstract

The invention relates to the technical field of numerical control, and discloses a numerical control machining method and system, computer equipment and a storage medium. The method comprises the steps that a first motion parameter of a machining path is determined according to a preset speed planning model and a preset constraint optimization method; the first motion parameter is processed through a quartic polynomial speed model, a second motion parameter of the machining path is obtained, the quartic polynomial speed model comprises a time variable and a plurality of dependent variables, and when the dependent variables are speed, the highest power of the time variable is quartic; and the machining equipment is controlled to machine the machined part along the machining path according to the second motion parameter. According to the method, the motion parameters of the machining path are greatly optimized, so that the acceleration of the machining equipment at the transfer point can be greater than zero, and the machining efficiency of the complex machining path is improved; and meanwhile, the sudden change of the acceleration is reduced, the machining stability is improved, and the machining quality of the machined part is improved.

Description

technical field [0001] The invention relates to the technical field of numerical control, in particular to a numerical control processing method, system, computer equipment and storage medium. Background technique [0002] CNC machine tools generally use continuous micro-line segments to fit complex machining paths (such as curves, surfaces, etc.). In order to meet the machining accuracy, the number of micro-line segments used for fitting is large. If each line segment is regarded as an independent processing segment, it will cause the machine tool to start and stop frequently, seriously affecting the processing efficiency and processing quality. [0003] In the prior art, there are mainly two processing methods for micro-line segments in complex processing paths, one is a turning point transition method, and the other is a global fitting method. Turning point transition methods include direct transition method and transfer transition method. [0004] The direct transitio...

AI Technical Summary

Problems solved by technology

The global fitting method can maximize the stability of processing, but it needs to comprehensively consider complex constraints such as fitting accuracy and curve gradient, which is difficult

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