一种基于软件寻位的数控加工技术.pdfVIP

第35 卷 第7 期 西 安 交 通 大 学 学 报 V ol. 35 7 2001 年7 月 JOU RNAL OF XIA N JIA OT ON G U NIVERSIT Y Jul. 2001 : 0253- 987X ( 200 1 周 凯, 林喜荣, 毛德柱, 刘 郁 ( , 1000 84 , : 针对传统定位加工技 存在的问题, 提出了新的软件寻位加工概念, 研究了软件寻位加工中 工件寻位问题的求解方法, 给出了典型的软件寻位加工控制方法, 介绍了软件寻位加工系统和实际 加工实验结果. 理论研究和实际加工结果表明, 所提出的原理和方法是可行的, 其主要优点是: 通过 主动获取工件信息自动求解工件状态及实时生成加工轨迹, 可实现对工件的位姿自适应加工, 因 而无需使用精密夹具和人工找正, 可使单件小批零件的总加工周期比采用夹具的常规定位加工方 法缩短50% 以上, 具有良好的应用前景. : 机加工技 ; 软件定位; 位姿自适应 : T P273 : A Numerical Control Machining Technique Based on Locating by Software Zhou K ai, L in X irong , Mao Dez hu, Liu Yu ( Depart ment of Precision Inst rument s, T singhua U niversity , Beijing 100084, China Abstract: T o solve t he problems ex ist ing in t radit ional locating machining t echnique, a new concept of numerical cont rol ( N C machining based on locat ing by sof tw are is present ed. Some typical control met hods for t his t echnique and a machining syst em based on locat ing by sof tw are are given . T heoret i cal and real machining result s show t hat t he posit ion of t he w orkpiece can be aligned automat ically as the specif ied cut t ing trajectory can be generat ed and execut ed in real time. T he tot al product ion t ime of sm all lot single size part s is reduced by more than 50% compared w ith t he traditional locat ing machin ing t echnique using fixt ures. Keywords: machining technique; locating by sof tware; ada tation of osition and attitude ! ∀ # , . . , , , , , . . , : ; , . , ! ∀ #, , , : : ( 1954 ~ , , , . : ( ; ! # ( 863- 512- 9 805- 13 .