Friction Compensation Strategy for Numerical Control Machine Tool by Reversing Character Analyzing

doi:10.7652/xjtuxb201408009

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Friction Compensation Strategy for Numerical Control Machine Tool by Reversing Character Analyzing

更新时间：2025-07-09

- Friction Compensation Strategy for Numerical Control Machine Tool by Reversing Character Analyzing
- Vol. 48, Issue 8, Pages: 47-53(2014)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201408009
  CLC： TP271.4
- Online First：10 August 2014，
  
  Published：2014
- 稿件说明：
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Friction Compensation Strategy for Numerical Control Machine Tool by Reversing Character Analyzing[J]. 2014, 48(8): 47-53.
DOI：

Friction Compensation Strategy for Numerical Control Machine Tool by Reversing Character Analyzing[J]. 2014, 48(8): 47-53. DOI： 10.7652/xjtuxb201408009.

摘要

为提高数控机床加工精度

降低数控机床换向时由摩擦引起的误差

并针对传统摩擦误差补偿方法难以获得最优补偿脉冲参数的问题

提出了一种基于数控机床换向特性分析的摩擦误差补偿方法。通过理论分析及实验数据对比

总结了不同参数补偿脉冲对数控机床伺服进给系统换向处运动特性的影响规律

并根据该规律推导出合理补偿脉冲参数的准则。依据该准则

通过采集数控机床运行过程中的相关信息

计算出补偿脉冲参数。按照计算所得参数设置补偿脉冲

实现对摩擦误差的补偿。在搭建的开放式数控系统平台上所进行的摩擦误差补偿实验表明

该方法可在不同工况下使伺服进给系统换向处附近绝对误差峰值及绝对误差平均值分别下降70%及50%

验证了该方法的有效性及可行性。

Abstract

To improve the precision of numerical control machine tool and lower the quadrant error from friction

a novel friction compensation strategy is proposed to solve the difficulty of determining parameters of friction compensation pulses. Combining theoretical analysis with the experimental data

the effects of different compensation pulses on a NC machine tool servo mechanism are discussed. The criterion for determining reasonable compensation pulse is deduced

then the parameters of a compensation pulse are sought out by synthesizing the data of an operating machine tool

thus the compensation is realized by setting the calculated results as the parameters. The compensation experiments are conducted on an open numerical system. It is shown that the peak and mean errors around reverse points are reduced by 70% and 50% respectively under different operation conditions.

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references

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