机电专业数控加工技术（毕业学术论文设计）.doc

精品 摘 要 论文首先介绍了数控机床的趋势：工序集中、高速化、高效、高精度、多功能等。从数控加工工艺基础讲起，由浅入深的分析了数控加工工艺的特点及技术要求。对典型箱体类零件的数控加工工艺分析及举例分析。 数控加工工艺是采用数控机床加工零件时所运用各种方法和技术手段的总和，应用于整个数控加工工艺过程。数控加工工艺是伴随着数控机床的产生和发展而逐步完善起来的一种应用技术，它是人们大量数控加工实践的总结。数控加工工艺是数控编程的前提和依据，没有符合实际的、科学合理的数控加工工艺，就不可能有真正可行的数控加工程序。数控编程就是将制定的数控加工工艺内容程序化。 本文主要论述了典型带有螺纹 、槽、内孔类零件的加工工艺以及刀具的选择和程序的编制，此类零件的尺寸精度、形状精度以及位置精度的要求都很高，而且加工起来比较复杂，需要进行多种工序，对于这种零件要充分考虑到螺纹的加工精度，内孔的加工精度，由于内孔加工起来不便于观察所以加工起来有一定的难度。 对于即将毕业的学生来说，本次设计的最大成果就是：综合运用机械设计、机械制图、机械制造基础、金属材料与热处理、公差与技术测量、理论力学、材料力学、机械原理、计算机应用基础以及工艺、夹具等基础理论、工程技术和生产实践知识。掌握机械设计的一般程序、方法、设计规律、技术措施，并与生产实习相结合，培养分析和解决一般工程实际问题的能力，具备了机械传动装置、简单机械的设计和制造的能力。 【关键词】：数控加工 工艺过程 加工工序 刀具工艺 精品 Abstract The thesis first introduces the CNC trend: the process focused, high speed, high efficiency, high accuracy, multiple functions. From the NC machining process based talk, from the shallower to the deeper analysis of the NC processing technology characteristics and technical requirements. The typical case parts CNC machining process analysis and example analysis. CNC machining technology is the use of CNC machining parts by using various methods and technical means of the sum, applied to the CNC machining process. NC machining process is accompanied by the emergence and development of CNC machine tool and perfected gradually a kind of application technology, it is the large CNC machining practice summary. NC machining process CNC programming is the premise and the basis, not practical, scientific and reasonable machining process, there can be no real practical numerical control processing program. NC programming is the formulation of the NC machining process content program. This paper mainly discusses the typical threaded hole, slot, parts of the processing technology and tool selection and programming, this kind of parts size precision, accuracy and precision of the shape of requirements are very high, and the processing is more complex, need for a variety of processes, for such parts shall give full consideration to the threa