Accuracy prediction of workpieces considering machine errors of multi-axis machine tools and its identification

考虑多轴机床加工误差的工件精度预测及其识别

基本信息

项目摘要

In this research work, the influence of machine errors such as the pitch error of worm-gears and the servo-error of NC controller for five-axis machining centers, which are a typical multi-axis machine tool, is investigated by the computer simulation and experiment. Firstly, the effectiveness of the testing method defined by the clause K6 of ISO 10791-6, which is specified for the five-axis machining centers with a double pivot spindle head, is investigated. It is pointed out from our results that the specified testing method in the ISO standard does not give any useful data. An alternative testing method is proposed, and its method gives us some useful information relating to the geometric accuracy. Then, an alternative measuring instrument of the motion trajectory of five-axis machining centers with a tilting rotary table is also developed. The developed instrument is very simple.A new testing method for checking the synchronous accuracy of a linear axis and a rotary axis is proposed. In the proposed method, a linear axis is simultaneously controlled with a rotary axis, and a circular path is described by the two axes. It is found that the proposed method is useful to check the servo-delay of each axis. Finally, the behavior of the simultaneous five-axis motion is investigated, considering the pitch error of the work gear and servo-delay as well as the geometric deviations. It is pointed out that the inclination angle and the center offset of the three dimensional circular path governs the dynamic behavior of the five controlled axes. In addition, it is found that the backlash and pitch error of the worm gear largely affect to the finishing accuracy of the workpiece of which shape is cone frustum.
在这项研究工作中,通过计算机模拟和实验研究了机器误差(例如蠕虫齿轮的俯仰误差)和NC控制器对五轴加工中心的伺服器的影响,这是典型的多轴机床。首先,研究了由ISO 10791-6条款K6定义的测试方法的有效性,该方法针对具有双枢轴主轴头的五轴加工中心指定。从我们的结果中指出,ISO标准中指定的测试方法没有提供任何有用的数据。提出了一种替代测试方法,其方法为我们提供了一些与几何精度有关的有用信息。然后,还开发了具有倾斜旋转桌的五轴加工中心运动轨迹的替代测量仪器。开发的仪器非常简单。提出了一种新的测试方法,用于检查线性轴和旋转轴的同步精度。在提出的方法中,线性轴以旋转轴同时控制,并且两个轴描述了圆形路径。发现所提出的方法可用于检查每个轴的伺服延迟。最后,考虑到工作齿轮和伺服 - 延迟的音高以及几何偏差的音高误差,研究了同时进行五轴运动的行为。可以指出的是,三维圆路径的倾斜角和中心偏移控制了五个受控轴的动态行为。此外,发现蠕虫齿轮的强烈反弹和俯仰误差在很大程度上影响了工件的饰面精度。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
A strategy for identifying static deviations in universal spindle head type multi-axis machining centers
同時5軸制御による主軸頭旋回形5軸制御マシニングセンタの幾何偏差同定方法
五轴同步控制旋转主轴头五轴控制加工中心几何偏差辨识方法
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    堤正臣;山元健;齊藤明徳;K.M.Muditha Dassanayake
  • 通讯作者:
    K.M.Muditha Dassanayake
Measurement method for synchronous motion accuracy in five-axis machining centers
五轴加工中心同步运动精度测量方法
5軸マシニングセンタの静的精度測定方法-ISO10791-6のK6の有効性とその応用
五轴加工中心静态精度测量方法-ISO10791-6 K6的有效性及其应用
New technologies for accuracy evaluation of five-axis controlled machining centers
五轴控制加工中心精度评估新技术
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TSUTSUMI Masaomi其他文献

TSUTSUMI Masaomi的其他文献

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{{ truncateString('TSUTSUMI Masaomi', 18)}}的其他基金

Estimation and diagnosis of accuracy of workpiece machined by simultaneous five-axis control
五轴同步控制加工工件精度评估与诊断
  • 批准号:
    20360063
  • 财政年份:
    2008
  • 资助金额:
    $ 8.32万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Identification and compensation of the deviations inherent to multi-axis machine tools
多轴机床固有偏差的识别和补偿
  • 批准号:
    15360066
  • 财政年份:
    2003
  • 资助金额:
    $ 8.32万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Performance Evaluation of Machine Tools Based on Roughness Profile in Surface Finish
基于表面粗糙度轮廓的机床性能评价
  • 批准号:
    04452128
  • 财政年份:
    1992
  • 资助金额:
    $ 8.32万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
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