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基于弹性相互作用的大型数控机床地脚螺栓预紧顺序规划

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Indexed by:期刊论文

Date of Publication:2015-08-02

Journal:制造技术与机床

Included Journals:PKU、ISTIC

Issue:8

Page Number:82-85

ISSN No.:1005-2402

Key Words:弹性相互作用;数控机床;地脚螺栓;预紧规划;精度保持性

Abstract:针对大型数控机床的床身安装精度调整及其保持问题,分析了地脚螺栓组件间的弹性相互作用机制,建立了地脚螺栓预紧力流传递模型,提出了基于最小安装变形误差和均匀残余预紧力的地脚螺栓预紧规划方法,并利用有限元法实现了地脚螺栓的预紧模拟.以典型数控机床床身安装为例,量化分析了预紧顺序对导轨安装面几何精度、残余预紧力的影响.结果表明,该方法能够实现数控机床地脚螺栓预紧顺序的合理规划.

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