火焰、等离子数控切割机电气控制系统.doc

哈尔滨工业大学工学硕士学位论文 哈尔滨理工大学学士学位论文 - PAGE II - -  PAGE II - 火焰、等离子数控切割机电气控制系统 摘 要 本篇论文叙述了数控技术的发展历史，数字控制的基本原理，数控系统的组成结构，主要功能及特点。基于开放式数控系统的特点，设计数控火焰、等离子切割机。 本文对数控火焰、等离子切割机的工艺特点和生产流程进行了比较细致的描述，并结合其工艺参数及生产设计整体控制方案，对其电气控制系统作详细分析和设计，分析了EDGE系统在切割机中的应用。 本文对数控火焰、等离子切割机的切割枪的升降问题进行了具体的分析，并依据其切割厚度对弧压的影响，设计火焰、等离子切割机切割枪的弧压式调高方法。 依据工艺要求和设计方案，对数控火焰、等离子切割机电气控制系统进行整体设计，包括电气元件的选择，电控柜，操作面板的设计，本文描述了PLC和编程控制器在切割机中的应用，依据其控制过程和生产流程选择PLC，并绘出梯形图，编出程序。 关键词　电气控制，热切割机、等离子技术，数控技术 Flames digital . Plasma cutting machine a few empty electrical control system Abstract This paper describes the NC history of the development of technology, digital control of the basic tenets of the NC system structure, the main functions and features. Based on open CNC system features, design and CNC plasma cutting machine. In this paper, CNC plasma cutting machine and the technological characteristics of the production process more detailed description and the context of its production process parameters and control the overall design of the program, its electric control system for the detailed analysis and design, Analysis of the EDGE system in the cutting machine applications. In this paper, CNC plasma cuts machine guns cutting movements for a specific analysis, and the basis of cutting thickness of the arc pressure, the design of plasma cutting machine guns, the arc cutting pressure-raising methods. Based on technology requirements and design program for CNC plasma cutting machine electrical control system design, electrical components, including the choice of control cabinet, operation panel design, This paper describes the PLC programming and cutting machine controller in the application based on their control process and the production process to choose PLC, and draws the ladder, came up with procedures. Keyword electrical control, earnest cutting machine，plasma technology, CNC- technology 不要删除行尾的分节符，此行不会被打印-  PAGE 10 - -  PAGE 47 - 目 录 摘要……  = 1 \* ROMAN I Abstract  = 2 \* ROMAN II