リンク機構を用いるNC工作機械の運動精度測定法 : 第3報, 小径円運動とコーナ部を含む直線運動の精度測定

概要

論文の詳細を見る
This paper describes the application of the LM measurement method for measuring two types of motion accuracy, trajectory accuracy of the circular motion with a small radius and the linear motion containing a square corner, on a machining center. The measured results for both the motion paths have high precision and good repeatability and confirm the validity of the LM method for the measuring purpose. It is verified for the tested machining center that the radius decrease of an actual path with respect to its specified radius R is in proportion to the value of F^2 /R in the circular motions, and the error around the square corner is proportional to the feed rate F in the linear motion paths. Two potential profile errors in contour machining with a high feed rate are demonstrated by the actual examples, i.e. the error caused by different radius decrease relative to neighboring interpolation circular arcs in tool path and the error caused by the combined influence of the feed rate change near the connection point of two motion blocks and the radius decrease of circular path.
一般社団法人日本機械学会の論文
1998-12-25