外文翻译-组合机床和多轴钻床.doc

1、毕 业 设 计（论 文）外 文 参 考 资 料 及 译 文 译文题目： Combination machine and General transformation multi-axis drilling machine drilling machine 组合机床和多轴钻床学生姓名： 学 号： 专 业： 所在学院： 指导教师： 职 称： 20xx年 2月 27日1 Combination machine Combination machine tool is based on general parts, according to the specific shape of workpiece

2、 and the special components and fixture design of machining process, semi-automatic or automatic special machine. 1.1 The function of combination machineCombination machine tools usually adopts the ways of multi-axial, more knives, more processes, multi-faceted or multistage .At the same time its pr

3、oduction efficiency is several times or more higher than general machine. Due to the standardization and serialization of general parts, we can make flexible configuration according to need to shorten the cycle of design and manufacture. Therefore, the combination machine has the advantages of low c

4、ost and high efficiency, in large, mass production is widely used, and the automatic production line can be used to composite. Combination machine tool is usually for general box or special shape of parts. During processing, workpiece rotate, generally by the tool and workpiece rotate movement and t

5、ools for the relative motion, to realize in drilling, reaming, economic hole, reaming, boring, cutting and milling, and the processing thread and fiber-end surface etc. Some combination machine adopts clamping workpiece machining head to rotate, feeding movement by the tool for, also can achieve som

6、e axisymmettical parts (such as the flywheel, automobile rear half axle, etc.) of the circle and the process.1.2 Combination machine parts classification General parts according to the function can be divided into power components and parts, transmission parts, supporting the control and auxiliary p

7、arts. Power components are provided for combination machine tools in the movement and moving parts. It contains Main motivation, cutting head and dynamic slide. Supporting components are installed power to slide into to institutions, cutting head or fixture, have side base, base, support, adjustable

8、 bracket, column and column base, etc. Transmission parts is used to transport or spindle box to the processing of the main parts, workstation dividing rotating table, the annular dividing rotating table, drum and to-and-fro moving workbench, etcControl components are used to control the machine par

9、ts, automatic working cycle is hydraulic pressure station and electrical cabinets and control console, etc. Auxiliary parts are lubrication device and cooling device and scraps discharge device etc.1.3 The development of modular machine toolIn order to make the combination machine tools in small bat

10、ch production, often applied to the structure, the application of group technology and craft of similar parts in a centralized modular machine tool, in order to improve the machining efficiency. This machine has two kinds of common, spindle box combination machine tools and turn tower combination ma

11、chine tools. Combination machine tools of future development will be more adopts adjustable motor transmission of ball screw, etc, to simplify structure and shorten the production beat, Using digital control system and spindle box, jig automatic replacement system, in order to improve the process ad

12、justability, Flexible manufacturing systems and into.2 General transformation multi-axis drilling machine drilling machine In present, Chinas small medium enterprises product quality production efficiency needs new increase. Processing means far from sufficient. Many small medium enterprises actual

13、technical state equipment improvements, through strengthening its own development. Common drilling single-axis machine tools, multi-axis box drill, transformation multi-axis drilling, we could greatly shorten processing time, improve production efficiency.2.1 Application multi-axis machining :Accord

14、ing general machine tools average cutting time rarely exceeds 15% total working hours. Remaining time plug-in, loading work piece, exchange tools, operation tools, measurements, iron filings so forth. Although CNC machine tools can improve 85%, some cases, even high productivity, same components, ne

15、cessarily lower than average machine. Different processing methods have different characteristics, drilling process, multi-axis machining small investment increase productivity through effective measures. 2.2Advantage Multi-axis machining Although automatic multi-axis adjustable long line applications, only limited high-volume production. Even adjustable multi-axis head expanded still far from being able small, hole complex requirements. Industrial development, large complex multi-axis machining even more compelling. For example, large-scale nuclea