摘要船舶设备在现代工业、军事、科研等众多领域有着举足轻重的作用。船用柴油机作为其主要的动力源，其质量决定着该设备的性能；而船用柴油机的机身质量则直接决定了柴油机的优劣和使用寿命，因此研究和优化柴油机机身的加工工艺具有很重大的现实意义。50808

本文基于PRO/E和VERICUT软件对一系列船用柴油机机身的加工工艺进行了仿真和优化，加工平台为PMC3000AT卧式数控机床，机床采用SIN840C控制系统。首先，本文分析了船用柴油机机身加工工艺，根据工艺特点使用VERICUT建立工艺系统，其中包括机床结构建模、刀具管理器添加、西门子840C控制系统定制、NC代码；其二，本文介绍了如何通过VERICUT得到整个加工过程，并检验代码的正确性，文章在末尾附上了加工过程的视频。最后本文描述了添加相应的刀具优化库并进行了柴油机机身加工工艺刀具路径优化的过程，得到了优化的流程与方法。

毕业论文关键字：柴油机机身；建模与仿真；刀具路径优化；西门子840C

 Abstract Ship equipment in modern industrial, military, scientific research plays an important role in many areas. Marine diesel engine as its main power source and its quality determines the performance of the device; while body mass marine diesel engines directly determine the merits and service life, so the research and process optimization engine body has a very significant practical significance.

Based on PRO / E and VERICUT, a range of marine diesel engine fuselage is simulated and optimized, processing platform PMC3000AT horizontal CNC machine tools, machine tools using SIN840C control system. Firstly, the paper analyzes the marine diesel engine body process, according to the technical characteristics established using VERICUT process systems, including structural modeling tool, the tool manager added, Siemens 840C control system customization, NC code; Second, this article describes how VERICUT get the whole process, and verify the correctness of the code, the article attached at the end of the video processing. Finally, this paper describes the optimization tool to add the appropriate library and conducted fuselage processing engine optimization tool path process has been optimized processes and methods.

Keywords: Diesel Body; Modeling and Simulation; Tool Path Optimization; Siemens 840C

 目录

第一章 绪论 1

1．1研究背景和意义 1

1．2数控加工仿真验证技术研究历史以及发展现状 2

1．3数控建模仿真工具的介绍 3

第二章 柴油机机身加工工艺分析 5

2．1机体加工工艺原理 5

2．1．1确定加工平面方法 5

2．1．2确定定位基准 6

2．1．3划分加工阶段 7

2．1．4热处理工序安排 7

2．2拟定工艺路线 7

第三章 工艺仿真系统构建 13

3．1 机床和机身建模 14

3．1．1建立机床运动轴组件拓扑结构 15

3．1．2组件和刀具建模 15

3．1．3 机床组件详细设置 16

3．2编程的基本原理 17

3．2．1轨迹信息 20

3．2．2位置数据/轴类型/准备功能