非円形形状 NC 輪郭研削加工に関する研究 : 電気式サーボ機構による高速高精度加工の実現

概要

論文の詳細を見る
High-speed and heavy-duty grinding of non-circular workpieces generally requires high rigidity of the overall mechanical system including the wheel feed system and the workpiece rotating system. Conventionally, hydraulic systems, such as the hydraulic copying mechanism and hydraulic servo mechanism, with which high power can be obtained relatively easily were mainly adopted as the drive system for highly rigid machine tools. However, electrical servo mechanisms capable of outputting high power are gradually being adopted by NC system. This paper discusses two problems; (1) improving in profile interpolation accuracy and (2) improving in servo error in high-speed grinding. Both problems are related to control technology and both will arise when an electrical servo mechanism is adopted for high-speed high-accuracy non-circular profile grinding. Solutions are offered for both problems. The solutions proposed by this paper are high speed, automatic generation of minimum linear interpolation data, the feed-forward control method, and the profile error compensation method. Prototype test equipment has been made to evaluate the feasibility of the solutions and to check how they can be adopted.
公益社団法人精密工学会の論文
1990-12-05