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首页> 外文会议>American Society for Precision Engineering Annual Meeting; 20051009-14; Norfolk,VA(US) >A NEW APPROACH TO ASSESS GEOMETRIC ERROR COMPONE NTS OF A MICRO-MACHINE-TOOL BASED ON MEASURING SPATIAL COORDINATES OF TWO SPECIAL POINTS
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A NEW APPROACH TO ASSESS GEOMETRIC ERROR COMPONE NTS OF A MICRO-MACHINE-TOOL BASED ON MEASURING SPATIAL COORDINATES OF TWO SPECIAL POINTS

机译：基于两个特殊点空间坐标的微机床几何误差分量评估新方法

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In comparison with the conventional machine tools, the micro-machine-tools get hold of many advantages such as power saving, portable and re-configurable conveniently due to their small size. But it also meets many problems since it is very difficult to be calibrated, monitored and operated etc. Although valid detecting range of a capacitance sensor is normally restricted, it just adapts to measuring the motion errors of a micro-stage due to its limited travel distance. This paper presented a new method by utilizing a set of measurement device with six micro-capacitance probes to detect the spatial coordinates of two special points. By means of projective transform and vector calculation, this paper produced a simple model to extract out all six error components of a motion stage based on the known values. Results of simulation indicated that this calculating model is feasible for identifying the error components of a motion stage. The developed system is simple in principle and extraordinary fit to a miniaturized machine tool with extremely confined operating room.
机译：与传统的机床相比，微型机床由于其体积小而具有许多优点，例如省电，便携式和可方便地重新配置。但是它也遇到很多问题，因为很难进行校准，监视和操作等。尽管通常限制电容传感器的有效检测范围，但由于行程有限，它仅适用于测量微位移台的运动误差。距离。本文提出了一种利用一套带有六个微电容探头的测量装置来检测两个特殊点的空间坐标的新方法。通过投影变换和矢量计算，本文生成了一个简单模型，可以基于已知值提取出运动平台的所有六个误差分量。仿真结果表明，该计算模型对于确定运动平台的误差分量是可行的。所开发的系统原理简单，非常适合于具有极为狭窄的操作空间的小型机床。

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