端盖零件的数控加工工艺设计与数控程序的编制毕业设计_精品.doc

端盖零件的数控加工工艺设计与数控程序的编制毕业设计 毕业设计说明书 题目端盖零件的数控加工工艺 设计与数控程序的编制 专业机械制造及自动化 班级机自 学生姓名 指导教师 摘要：大力发展以数控技术为核心的先进制造技术已成为世界各发达国家加速经济发展,提高综合国力和国家地位的重要途径。数控加工工艺设计的主要任务是制订加工工艺规程，也是数控机床加工前的准备工作。工艺规程是规定零件、走刀路线、刀具尺寸以及机床的运动过程。因此，是编程人员对数控机床的性能、制造工艺过程和操作方法具有指导性的工艺文件。数控机床加工的程序是数控机床的指令性文件。数控机床加工程序不仅要包括零件的工艺过程，而且还要包括切削用量的选择、运动方式、刀具系统、切削规范以及工件的装夹方法。工艺规程定得合理与否，对程序编制、机床的加工效率和零件的加工精度都有重要影响。因此，应遵循一般的工艺原则并结合数控机床的特点认真而详细地制订数控加工工艺。本设计结合一具体零件进行了零件图分析，加工设备、刀具、工装的选择，切削速度、进给量、背吃刀量等参数的选择，制订了零件的数控加工工艺；根据所选择机床的指令系统编写了零件的加工程序。关键词：数控加工、数控技术、数控程序 Pick to: develop with numerical control technology as the core of the advanced manufacturing technology has become the world each developed countries to accelerate economic development, enhance comprehensive national strength and the national status of important ways. Nc machining process design of the main task is to make processing procedure, also be CNC processing preparation before. Procedure is a regulation parts, walk knife route, size and machine tool of the movement process. Therefore, it is of CNC programming personnel of performance, the manufacture process and operation method it is instructive process documents. Nc machining program is of CNC prescriptive document. CNC machining program should not only including part of the process, but also include of cutting parameter selection, movement way, cutting tool system, cutting norms and clamping workpiece method. Technological procedures set reasonable or not, for programming, machine tools machining efficiency and parts of machining accuracy has important influence. Therefore, we should follow the principle of combining general process of CNC characteristics carefully and clearly stated nc machining process. This design combined with a specific parts parts diagram analysis, processing equipment, tool, tooling choice, cutting speed, feed, optimizing the parameters such as the quantity of back choice, formulate the parts CNC processing technology, According to the choice of mach