• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Workshop on Microfactories vol.1; 20041015-17; Shanghai(CN) >A MULTI DEGREE OF FREEDOM MEASUREMENT SYSTEM FOR DETERMINING GEOMETRIC ERRORS IN A MINIATURI ZED MACHINE TOOL
【24h】

A MULTI DEGREE OF FREEDOM MEASUREMENT SYSTEM FOR DETERMINING GEOMETRIC ERRORS IN A MINIATURI ZED MACHINE TOOL

机译：用于确定小型机加工机床几何误差的多自由度测量系统

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The miniaturized machine tool (mMT) is efficient for machining small and accurate components with its advantages such as saving energy and spacing, less inertial effect, and less heat dissipation. Geometric errors of the system exist due to misalignment and assembly etc, though the size of the mMT system is small. To measure 21 geometric errors, a novel multi-degree-of-freedom measuring system is proposed for the miniaturized machining tool. This system consists of five capacitance sensors. An exact mathematical model based on the Homogeneous Transformation Matrix (HTM), incorporated with these geometric error components is obtained to define the changes in outputs of capacitance sensors. An algorithm is derived from this model to calculate each error component by using the changes in outputs of probes. To verify the efficiency of this algorithm, several computer simulations are carried out. In the sensitivity analysis of this algorithm, the effects of the errors in probe mounting and fixture-dependent are also discussed. The present analysis shows that this algorithm is efficient in measuring, particularly the angular errors. Finally the proposed algorithms are evaluated and the results are presented in this paper.
机译：小型机床（mMT）具有节省能源和间距，减少惯性效果以及减少散热等优点，可高效地加工小型且精确的零件。尽管mMT系统的尺寸很小，但由于未对准和组装等原因，系统存在几何误差。为了测量21种几何误差，提出了一种用于小型加工刀具的新型多自由度测量系统。该系统由五个电容传感器组成。获得了基于均质变换矩阵（HTM）并结合这些几何误差分量的精确数学模型，以定义电容传感器输出的变化。从该模型中得出一种算法，可以通过使用探针输出的变化来计算每个误差分量。为了验证该算法的效率，进行了几次计算机仿真。在该算法的灵敏度分析中，还讨论了探头安装和夹具相关误差的影响。目前的分析表明，该算法在测量尤其是角度误差方面非常有效。最后对提出的算法进行了评估，并给出了结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号