CAJ | 학술논문

数控加工中许多被加工零件都有高精度要求的孔，孔位精度对孔的加工精度影响很大，而孔位精度在很大程度上取决于机床的调整阶段，文章通过建立孔系孔位精度模型的尺寸链，采用区间法对孔位精度进行了模拟与评价，得出在机床调整阶段提高孔位精度，必须充分满足成形阶段的条件，并考虑数控机床的控制类型和精度等级，以及执行机构位置不同的误差与计算精度的最小储备。
수공가공중허다피가공령건도유고정도요구적공，공위정도대공적가공정도영향흔대，이공위정도재흔대정도상취결우궤상적조정계단，문장통과건립공계공위정도모형적척촌련，채용구간법대공위정도진행료모의여평개，득출재궤상조정계단제고공위정도，필수충분만족성형계단적조건，병고필수공궤상적공제류형화정도등급，이급집행궤구위치불동적오차여계산정도적최소저비。
Many of the parts to be machined have holes requiring high precision in the process of NC machining and the hole position accuracy have great effect on the hole machining accuracy ,while the hole position accuracy is greatly determined by the adjustment stage of machine tool .By establishing the dimension chain of the bore hole precision model ,the paper simulates and evaluates the hole position ac‐curacy through the interval method ,draw s the conclusion that the improvement of the hole position accu‐racy during the adjustment stage of machine tool must fully meet the conditions of forming stage ,con‐sider control type and accuracy grade of CNC machine tool ,execution error mechanism in different loca‐tions and minimum reserve of the calculation accuracy .