直驱双轴转台的可靠性增长措施

Reliability Growth Measures of Direct Drive Two-axis Rotary Table

直驱双轴转台是五轴联动加工中心的核心功能部件,常用于加工具有空间复杂曲面的航空航天发动机叶轮叶片等,因其结构复杂,加工工况多变,容易发生故障。对国产某型五轴联动叶片加工中心可靠性的薄弱环节直驱双轴转台进行了研究,根据掌握的故障数据,进行故障模式影响及危害性分析,找出直驱双轴转台可靠性的薄弱部位,对故障发生的原因进行了深入分析,提出了有针对性的可靠性增长措施。为国产直驱双轴转台的可靠性增长提供了一定的依据。

Direct-drive two-axis rotary table is the core of five-axis linkage machining center features, often used in machining complex curved surface with space of aerospace engine impeller blades, because of its complex structure, Changing processing conditions, prone to failure. Exampled by the reliability weak link of domestic blade machining center：direct drive two-axis rotary table as the research object, based on the failure data, the failure mode effects and hazards analysis, find out the weak position of the direct drive two-axis rotary table’ s reliability, to in-depth analysis of the cause of the failure, put forward the corresponding measures of reliability growth. Provided a certain basis for reliability growth of the domestic direct drive two-axis rotary table.