新型车削测温系统设计+CAD图纸+答辩PPT
时间:2018-05-28 21:12 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：本论文针对车床切削的运动特点、车床切削的环境以及车削过程的温度测量技术的研究现状，在收集了多种现代测温技术的资料，研究了各类测温方法和数据处理方法的基础上，经过对比各种测温方案的特点后，采用了红外线测温方法。利用三文有限元数值分析法并结合了当代的技术资料分别对工件与刀具温度场进行模拟分析，并最终确定了测量刀具温度的可行性与必要性，进而选取符合测量要求的红外设备，并通过夹具设计、计算机调试与数据处理模拟试验，最终完成了一套适用于普通车床的测温系统。该系统主要用来测量在特定切削条件下的车刀实时切削温度，本设计能为车刀刀片的磨损原因提供温度数据和理论依据。本文主要的开发过程包括车削温度场研究、红外探头夹具设计与无线传感器数据输出。23437 毕业论文关键词：温度测量；红外；车床。 Abstract: In this dissertation, the basis for the motion characteristics of cutting lathe, lathe cutting environmental research status and temperature measurement techniques for turning process of collecting a variety of modern thermometry technology information, research a variety of temperature measurement and data processing methods on after comparing various features temperature measurement programs, the use of infrared temperature measurement methods. Using threedimensional finite element analysis method combined with the technical data of the workpiece and tool temperature field simulation analysis, and ultimately determine the feasibility and necessity of measuring the temperature of the tool, and then select an infrared device to measure compliance with the requirements and design through the fixture, computer simulation debugging and data processing, the final completion of a set of suitable measurement system lathe. The system is mainly used to measure the specific cutting conditions lathe cutting temperature in real time, this design can provide temperature data and the theoretical basis for the cause of turning the blade wear. In this dissertation, the development process, including turning the temperature field studies, infrared probe fixture design and wireless sensor data output. Keywords: temperature measurement; infrared; lathe. 目录 一、 课题背景介绍7 二、 新型车削测温系统设计8 1. 常见车削测温方法研究和选取8 1.1热电偶法9 1.1.1自然热电偶法9 1.1.2人工热电偶法10 1.1.3半人工热电偶法11 1.1.4等效热电偶法12 1.2热电阻法12 1.2.1热电阻测温原理及其材料13 1.2.2热电阻的结构14 1.2.3热电阻测温系统的组成15 1.2.4工业常用的金属热电阻15 1.2.5热电阻的结构形式16 1.2.6热电阻测温的注意点16 1.3光、热辐射法17 1.3.1热辐射定律17 1.3.2(1)基尔霍夫定律17 1.3.2(2)斯蒂芬玻尔兹曼定律18 1.3.2(3)文恩位移定律18 1.3.2(4)普朗克辐射定律19 1.3.3红外测温仪法19 1.3.4红外热像仪法20 1.3.5其他光、热辐射测温法22 1.4测温方法的选取22 2. 红外测温在本课题中的设计及应用23 2.1红外测温的原理23 2.2红外测温的设计方法24 3. 车削工件温度场和刀具温度场的特点分析和比较27 3.1刀具温度场分析27 3.2工件温度场分析28 3.3选定测温对象30 4. 切削条件和切削参数的设定30 5. 红外测温仪选取与安装31 5.1工作原理31 5.2测量特点32 5.3测温仪选取33 5.3.1产品简介34 5.3.2应用领域34 5.3.3电参数35 (责任编辑：qin) |