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摘要
涡轮盘是航空发动机上十分重要的零件,它的精度高、机械加工难度大,处在高速、高温的环境下工作,是关键复杂构件,在整个涡轮机加工中也是一个难点。而在涡轮盘机械加工中,工作量最大、难度最高的是涡轮盘榫槽加工。涡轮盘榫槽夹具可以保证加工精度高,提高加工效率。因此夹具设计是榫槽加工中的一个重要环节。
本文通过对涡轮盘榫槽类型结构、加工工艺、夹具设计及使用情况的分析,阐述了定位基准的选择,压紧方式的确定,正确的复杂空间尺寸及角度计算和高精度的分度机构设计的过程,完成了涡轮盘榫槽重要夹具工装的设计,提出了针对整体工艺装备提高榫槽表面粗糙度的解决方法。
关键词: 涡轮盘榫槽空间角度计算步伐式双销联动分度装置
Abstract
The turbine disk is on the aircraft engine the extremely ponents, for its high precision, the hard machine-finishing, under the high speed high temperature environment works, is the ponent, in the entire turbine processing also is a difficult point. Moreover in the turbine disk machine-finishing, the turbine disk trough processing is what the work load is biggest, the difficulty is highest. The turbine disk trough fixture may guarantee the processing precision is high, enhances the processing efficiency. Therefore the fixture design in trough processing is an important link.
This article through to analysis the turbine disk trough type structure, the processing craft, the fixture design and the service condition, elaborated the localization datum choice, contracts the way the determination, the plex spatial size and the putation and the high accuracy ruling engine construction design process, pleted the designing of the turbine disk trough important fixture work clothes, proposed the solution of enhances trough the surface roughness in view of the overall craft equipment.
Key words:trough the working surface spatial putation
speed step type double sells the linkage axial to be divided the equipment
目录
摘要……………………………………………………………………………I
Abstract …………………………………………………………………………II
第1章绪论……………………………………………………………………1
机床夹具及其功用…………………………………………………1
现代机床夹具的发展方向…………………………………………1
现代工业对夹具设计的基本要求…………………………………2
项目提出的背景……………………………………………………2
项目研究的方法、预期结果及意义………………………………3
第2章涡轮盘榫槽加工特点与工艺装备……………………………………4
涡轮盘榫槽的加工特点……………………………………………4
拉削特点……………………………………………………………4
拉削分类……………………………………………………………4
拉削速度……………………