文章基本信息

标题：Fast computing of instantaneous cutter position error curve
本地全文：下载
作者：Zhiwang Gan ; Zhitong Chen ; Meng Zhou 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2015
卷号：7
期号：9
DOI：10.1177/1687814015604075
语种：English
出版社：Sage Publications Ltd.
摘要：This article focuses on the computing efficiency of the instantaneous cutter position error curve in computer numerical control cutter positioning, which reflects the positional relationship between the cutter and the desired surface and leads to the strip width of current positioning. The directed projection is proposed to measure the distance of a discrete point to the cutter surface. Two models using fitting techniques are established to compute the instantaneous cutter position error curve. The fitting technique used in this article is based on the quartic polynomial model. In addition, to enhance the accuracy in the nonsymmetric case, the nonsymmetric quartic polynomial model is established, and it induces a more adaptable method. Illustrated experiments show good performance of the proposed methods.
关键词：CNC tool geometric computation; cutter positioning optimization; directed projection; point-vector; instantaneous cutter position error curve; strip width