1、1 毕业设计（论文）外文参考文献翻译 机械工程 系（院） 20 08 届 题 目 （中文） 电主轴的机械设计 （英文） the mechanic designs of electric spindles 学生姓名 专业班 完成日期： 2008 年 3 月 23 日 2 目 录 1.电主轴技术水平分析 （ 8） 2. 高速电主轴单元（ 14） 3 The electrical technical level of main shaft is analysed Abstract: Electrical main shaft is the processing machine tool of num
2、erical control heart parts , this paper has introduced typical structure and the working principle of electrical main shaft , has elaborated the crucial technology of electrical main shaft , has summarized it to develop tendency. Keyword: The electrical porcelain ball of main shaft mix the bearing l
3、ubrication of oil gas 1, it is general to state the processing quality that can not only raise processing efficiency substantially because of high speed processing and can still raise workpiece apparently, so, its application field is very extensive , is especially in aerospace , the manufacturing i
4、ndustries such as automobile and mould in. It is spoilt recently that so, the machine tool of numerical control that has high speed process capability has become market. Now, the domestic and international each famous manufacturer of machine tool adopts the electrical structure of main shaft extensi
5、vely in the machine tool of numerical control , is especially being compound to process machine tool and much axle to unite to move , polyhedron processing machine tool and the machine tool of parallel connection in. Electrical main shaft is the processing machine tool of numerical control heart par
6、ts , its performance index direct decision the level of machine tool, it is that machine tool realizes basic condition and the prerequisite of high speed processing. 2 the working principle electrical main shaft of the working principle, typical structure and 2.1 advantage electrical main shafts of
7、electrical main shaft is the direct motor rotor of be hollow pack in main shaft on, stator knows super-cooling but cover fixes , form a complete unit of main shaft in the casing hole of main shaft, after starting eclectricity rotor directly drive the operation of main shaft. The typical structural l
8、ayout way of the typical structural electrical unit of main shaft of 2.2 electrical main shafts is that generator sets up before main shaft , rear axle Cheng between ( as picture show ), its advantage is that the axial size of the unit of main shaft is the big, medium-sized machine tool of numerical
9、 control short comparatively, the rigidity of main shaft big, power suits comparatively； It is insufficient to be the naturally scattered hot condition in the generator in the casing of main shaft that encloses to differ from , has higher temperature rise. The 1 casings of main shaft the 2 cooling s
10、ets of 3 4 5 import stator rotors of cooling water the 6 sets of 7 8 9 10 former 11 can export feedback installation bearing rear axles of cooling water of runner shaft of main shaft of main shaft Cheng the advantage electrical province of main shaft of 2.3 electrical main shafts have gone to take s
11、hip or positive drive, the 0 transmissions that have realized machine tool have raised transmission efficiency. The rigidity of electrical main shaft good, rotary precision is sex high respond fast good, can realize very high rotational speed and add and slow down degree and decide angle stop fast definitely ( C axle control ), the scope of speed adjustment is wide. 3, the crucial technical concept of electrical main shaft of electrical main shaft should not be simple to understand for the merely a sleeve of main shaft , and should be a set of
