机床进给系统设计与分析最权威综述

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机床进给系统设计与分析最权威综述1. Introduction
Feed drives are used to position the machine tool components
carrying the cutting tool and workpiece to the desired location;
hence their positioning accuracy and speed determine the quality
and productivity of machine tools. A general architecture of feed
drive hardware and its computer control structure are shown in
Fig. 1. Feed drives are either powered by linearmotors directly， or
by rotary motors via ball screw and nut assembly as shown in
Fig. 2. The drive train consists of amachine tool table resting on the
guide， and moved linearly either by a ball screw drive-nut or by a
linear motor system. The ball screw may be connected to the
rotary servo motor directly or via gear reduction for large
machines. The motor is powered by ampli