CAJ | 학술논문

针对五轴机床受装配精度和旋转部件的影响,使机床出现结构误差造成刀具在刀位点处出现偏移,影响机床的加工精度. 通过分析各项误差对刀位点的影响,建立五轴运动学误差模型,使用AxiSetTM Check-up组件中的3D测针-球体设备,对球心进行不同角度的多次测量,根据相应的五轴进给对机床误差项进行精确求解. 所采用的测量方法对建立的各类误差模型具有较好的一致性,通过对五轴运动误差的补偿不仅可以提高现有数控机床的加工精度,而且为以后多轴机床的测量提供了统一的测量基础.
침대오축궤상수장배정도화선전부건적영향,사궤상출현결구오차조성도구재도위점처출현편이,영향궤상적가공정도. 통과분석각항오차대도위점적영향,건립오축운동학오차모형,사용AxiSetTM Check-up조건중적3D측침-구체설비,대구심진행불동각도적다차측량,근거상응적오축진급대궤상오차항진행정학구해. 소채용적측량방법대건립적각류오차모형구유교호적일치성,통과대오축운동오차적보상불부가이제고현유수공궤상적가공정도,이차위이후다축궤상적측량제공료통일적측량기출.
Influenced by assembly precision and rotating parts, five-axis machine tool structural error is ap-peared to lead offset error in cutter tip center and reduce the machining accuracy. By analyzing the impact of the errors on the knife sites, the five-axis kinematic error model is built, and multiple measuring the center of the ball at different angles used by 3D probe-ball device, which is a part of AxiSetTM Check-up compo-nent, to accurately solve the error terms based on the corresponding five-axis machine tool feed. The meas-uring method used in this paper has well consistent on various error models, by five-axis motion error com-pensation can not only improve the existing CNC machining accuracy, but also provide a uniform measuring basis for the multi-axis machine tool in the future.