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Numerical control machine tool machining prospective processing method and system

A technology of numerical control machine tools and processing methods, which is applied in general control systems, control/regulation systems, digital control, etc., can solve problems affecting processing speed, etc., and achieve the effects of improving processing speed, strong adaptability, and meeting real-time processing requirements

Active Publication Date: 2020-11-03
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although redundant calculations occupied by backtracking are avoided, the speed of each m straight line segment needs to be reduced to zero, which will also affect the processing speed

Method used

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  • Numerical control machine tool machining prospective processing method and system
  • Numerical control machine tool machining prospective processing method and system
  • Numerical control machine tool machining prospective processing method and system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Adopt the present invention to be able to process numerical control machine tool, a kind of numerical control machine tool processing method comprises:

[0078] Step 11: Obtain multiple straight line segment processing paths, specifically including:

[0079] Get the processing path.

[0080] It is judged whether the processing path is a circular arc path.

[0081] If so, determine the arc angle corresponding to the discrete straight line segment according to the machining error.

[0082] Get the central angle corresponding to the arc.

[0083] According to the arc angle and the center angle, the discretized last residual straight segment is divided into global segment lengths to obtain N straight segment processing paths.

[0084] If not, it means that the processing path is a straight line segment, and the current straight line segment processing path is directly saved.

[0085] image 3 It is a schematic diagram of the discretization of circular arcs into small s...

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PUM

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Abstract

The invention relates to a numerical control machine tool prospective processing method and system. A grouping prospective processing method is adopted, the existing prospective processing advantagesare kept, the whole processing process is predictable, machine tool vibration caused by sudden excessive acceleration and deceleration is avoided, the precision of a processed product is improved, theservice life of a machine tool can be prolonged, and a corner multi-period transition method is combined. According to the method, the machining speed of the machine tool can be integrally increased,so that the production efficiency is effectively improved, and particularly, by adopting a grouping prospective method, the real-time performance of prospective processing can be improved, the real-time machining requirement of a numerical control system is met, and the advantage of relatively high overall machining speed is also ensured.

Description

technical field [0001] The invention relates to the field of numerical control of numerical control machine tools, in particular to a method and system for forward-looking processing of numerical control machine tools. Background technique [0002] When CNC machine tools process complex curved surfaces, they usually discretize the processed surface into a large number of small straight line segments within the set processing accuracy range. In the process of processing small straight line segments, the processing speed and processing accuracy of CNC machine tools restrict each other. Because during actual processing, the processing direction of the CNC machine tool needs to be changed frequently, causing the machine tool to start and stop frequently, which limits the processing speed and is prone to vibration, which affects the processing accuracy and surface finish of the processed surface. Under the condition of ensuring the machining accuracy, in order to improve the mac...

Claims

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Application Information

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IPC IPC(8): G05B19/416
CPCG05B19/4163G05B2219/36521
Inventor 申立勇
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES