CAJ | 학술논문

插补技术是机床数控系统的核心技术,逐点比较圆弧插补法是圆弧轮廓的插补算法之一,其算法的优劣直接影响零件圆弧轮廓的加工精度和加工速度。文章在传统的逐点比较圆弧插补算法的基础上,提出以八方向进给取代传统的四方向进给,研究了偏差最小的走步方向的实现方法,同时研究了保证数控机床坐标进给连续的偏差递推计算过程,得出改进后插补算法的流程图。结果表明,新算法可以提高零件轮廓的逼近精度且减少了插补计算次数,从而提高了零件圆弧轮廓的加工精度和加工速度。
삽보기술시궤상수공계통적핵심기술,축점비교원호삽보법시원호륜곽적삽보산법지일,기산법적우렬직접영향령건원호륜곽적가공정도화가공속도。문장재전통적축점비교원호삽보산법적기출상,제출이팔방향진급취대전통적사방향진급,연구료편차최소적주보방향적실현방법,동시연구료보증수공궤상좌표진급련속적편차체추계산과정,득출개진후삽보산법적류정도。결과표명,신산법가이제고령건륜곽적핍근정도차감소료삽보계산차수,종이제고료령건원호륜곽적가공정도화가공속도。
Interpolation technology is the core technology of machine tool＇s CNC system.The algorithm of point-to-point comparison circular interpolation is one of circular contour＇s interpolation algorithms.The algorithm of point-to-point comparison circular interpolation affects the machining accuracy and rate directly.Base on the conventional algorithm of point-to-point comparison circular interpolation,it was put forward in the article that feed in eight directions takes place of feed in four directions,the achievement method of feed direction was researched that can result in the least deviation,the deviation recursive calculation process was researched that can ensure a continuous CNC coordinate feed,the flow chart of the improved interpolation algorithm was obtained.The result showed that the approximation accuracy of parts’ contour was improved and the number of interpolation calculation was reduced by use of new algorithm,and then the machining accuracy and rate of parts’ circular contour was improved.