国产大型飞机蒙皮卧式双五轴镜像铣床多轴联动换刀装置

Domestic Large Aircraft Skin Horizontal Double Five-Axis Mirror Milling Machine Multi-Axis Linkage Tool Change Device

摘要: 针对第一代国产大型飞机蒙皮卧式双五轴镜像铣床换刀频繁出现因负载过大触发故障报警的问题，研究设计了一种多轴联动换刀装置。该装置通过增加相对弱刚性的旋转换刀机构，避免了换刀时机床主轴与相对高刚性的圆盘刀库直接换刀，降低了换刀时主轴所受负载，增加了换刀爪夹持中心自适应性，避免了换刀时频繁报警。研制了多轴联动换刀样机，并配套安装在国产大型飞机蒙皮卧式双五轴镜像铣床上进行了连续自动换刀测试，结果表明，在超3600次连续自动换刀测试中无报警发生。

Abstract: In order to solve the problem that the first generation of domestic large aircraft skinned horizontal double five-axis mirror milling machine frequently triggers fault alarms due to excessive load, a multi-axis linkage tool change device was studied and designed. By increasing the relatively weak rigidity of the rotary tool change mechanism, the device avoids the direct tool change between the machine tool spindle and the relatively high rigidity disc tool magazine during tool change, reduces the load on the spindle during tool change, increases the adaptability of the tool change jaw clamping center, and avoids frequent alarms when tool change. A multi-axis linkage tool change prototype was developed, and installed on a domestic large aircraft skin horizontal double five-axis mirror milling machine for continuous automatic tool change test, and the results showed that there was no alarm in more than 3600 continuous automatic tool change tests.