灵敏度分析和对螺旋 bevel 轮机床的牙表面偏差的补偿
Jianjun Yang1,2, Linlin Si3, Jubo Li3
1Electromechanical College, Henan University of Science and Technology, Luoyang, 471000, Henan, China. hohooyang@126.com.
Scientific reports
|September 30, 2024
概括
这项研究确定了五轴数控机床中的关键几何错误,这些错误影响了螺旋形形轮牙表面偏差. 应用灵敏度分析可以显著减少加工错误,提高轮精度.
科学领域:
- 机械工程 机械工程
- 制造业 制造技术 制造技术
- 精密工程 精密工程是指精密的工程.
背景情况:
- 五轴数控机床对于制造螺旋形轮等复杂元件至关重要.
- 机床中的几何错误直接影响加工轮牙表面的精度.
- 了解机器错误和轮偏差之间的定量关系对于质量控制至关重要.
研究的目的:
- 为了建立五轴数控机床几何误差和螺旋形轮轮牙表面偏差之间的定量映射关系.
- 确定影响螺旋形轮轮牙表面加工偏差的关键几何错误.
- 提出和验证一种灵敏度分析方法,用于控制牙表面偏差.
主要方法:
- 在五轴数控机床上开发螺旋形轮轮牙表面的加工模型.
- 使用螺丝理论建立机床的几何错误转移模型.
- 应用扩展里埃振幅灵敏度测试 (EFAST) 全球灵敏度分析方法来识别关键的几何错误.
主要成果:
- 该研究成功地确定了影响螺旋形形轮牙表面偏差的关键几何错误.
- 对已识别的关键错误进行补偿的模拟表明,牙表面偏差显著减少.
- 与本地灵敏度分析的比较证实了拟议的全球灵敏度分析方法的可靠性和有效性.
结论:
- 提出的灵敏度分析方法,集成螺丝理论和EFAST,有效地识别了螺旋轮五轴CNC加工中的关键几何错误.
- 针对这些关键错误进行有针对性的补偿,可以大大提高牙表面的精度.
- 使用灵敏度分析来精确控制螺旋形轮轮牙表面偏差的可行性得到证实.
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