基于差分插补理论的慢走丝线切割上下异型面工件新方法.pdf

1 2 2 2 2 赵庆志 刘正埙 谷安 汪炜 高长水 1. 山东理工大学, 淄博, 255049 2. 南京航空航天大学, 南京, 210016 : 提出了基于 分插补理论的加工上下异型面工件的新方法, 把工件的下表面( 参考 平面, PRP) 和工件的上表面( 第二平面, PSP) 上的插补运动位移换算为UV 及X Y 两平面上的 位移叠加, 具有简化编程减小传统计算方法产生的累积误 提高加工精度的明显优点论 述了上下异型面合成插补控制程序设计原理, 并在慢走丝线切割机床计算机控制系统设计中 得到了应用 : ; ; ; ; : T H 162; T H 165 : 1004 132X( 2006) 08 079306 A New Machining Method forDifferent Top and Bottom Shaped Workpiecewith LS- WEDM Based on Difference Interpolation Theory 1 2 2 2 2 Zhao Qing hi Liu Zhengx un Gu An Wang W ei Gao Changshui 1. Shando ng U niversity of T echenolo gy, Zibo, Shandong, 255049 2. Nanjing University of Aeronautics and Astronautics, Nanjing , 2100 16 Abstract: The paper put forw ar d a new m ethod of m achining different top and bottom shaped w orkpieces based on diff erence interpolation theory, the metho d calculated the displacement of PRP and PSP plane to equivalent accum ulated displacem ents of UV and X Y plane, w hich w as of advantag es for sim plifying programming, reducing accumulative errors caused by traditio nal calculatio n method and increasing m achining pr ecision. The principles of sy nthetic interpolation controlling progr am for different top and botto m shaped has been ex pounded and used in the CNC system of low er speed w ire electr ical discharge machine tools( LS- WEDM ) successfully. ey words: diff erence inter polation theory; LS- WEDM ( low er speed- w ire electr ical discharge machining) ; diff er ent top and bottom shaped w orkpiece; displacement; analogy (1) ( 1) ( 2) (2) 0 引言