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首页> 外文期刊>Journal of manufacturing science and engineering: Transactions of the ASME >Three-Dimensional Tube Geometry Control for Rotary Draw Tube Bending, Part 1: Bend Angle and Overall Tube Geometry Control
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Three-Dimensional Tube Geometry Control for Rotary Draw Tube Bending, Part 1: Bend Angle and Overall Tube Geometry Control

机译：旋转拉伸管的三维管几何控制，第1部分：弯曲角度和整体管几何控制

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Traditional trial-and-error springback compensation methods have the problems of high scrap rate, low efficiency, high cost of fixtures and operator experience dependency. The method presented in this paper uses on-line measured springback data from the same batch to predict and compensate for springback. Because there are no springback data for the first bend, bend-rebend control is used to make the first bend to eliminate trial tubes. In addition to springback, relaxation and radial growth are also estimated and compensated for to make a bend more accurate. A process control method is developed to optimize the overall control strategy such that the overall tube error is minimized without increasing the required hardware accuracy. The optimal process control strategy has significantly higher accuracy than the traditional trial-and-error method. The details of statistical analysis of tube tolerance and adaptive bend correction algorithm are presented in Part 2 of the paper.
机译：传统的试错回弹补偿方法存在报废率高，效率低，固定装置成本高以及操作者经验依赖等问题。本文介绍的方法使用来自同一批次的在线测量回弹数据来预测和补偿回弹。由于没有第一个折弯的回弹数据，因此使用折弯折弯控制使第一个折弯消除试管。除回弹外，还估计并补偿了松弛和径向增长，以使弯曲更精确。开发了一种过程控制方法来优化总体控制策略，从而在不增加所需硬件精度的情况下将总管误差降至最低。与传统的试错法相比，最佳过程控制策略的准确性要高得多。本文第二部分详细介绍了管公差统计分析和自适应弯曲校正算法。

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