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本文介绍座标镗床的主轴、导轨和座标工作台夹紧机构,在结构上改进设计的经验和体会。一、座标工作台夹紧机构的改进设计对于定位精度<0.01～0.02mm的座标工作台夹紧时移位变动量要求不超过1～2μm,一般难以达到,尤其对采用滚动导轨的机床更难。夹紧移动发生在刚开始夹紧时的一瞬间,最初几次移动较大,以后逐渐衰减。原因在于工作台开始移动时,存在着摩
This article introduces the coordinate boring machine spindle, rail and coordinate table clamping mechanism, the structural improvement of the design experience and experience. First, the coordinate table clamping mechanism of the improved design for the positioning accuracy of <0.01 ~ 0.02mm coordinate table when the displacement of the clamping requirements of not more than 1 ~ 2μm, generally difficult to achieve, especially for the use of rolling guide rail machine Harder. Clamp movement occurs at the beginning of clamping the moment, the first few moves larger, then gradually decay. The reason is that there is friction when the work table starts to move