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1、 目 录摘要.Abstract.引言2 1绪论21.1国内外3D打印机的研究现状21.1.1国外3D打印机的研究现状21.1.2国内3D打印机的研究现状31.23D打印机的发展趋势31.2.1 3D打印产业的未来发展前景31.2.2 3D打印技术未来发展的主要趋势41.33D打印机的工作原理及特点41.4发展创新与突破62 总体方案及结构设计72.1引言72.2总体框架的设计82.3温度控制回路的设计82.4XYZ三方向控制电机的设计92.5喷头移动及喷出量调节的设计错误!未定义书签。3 机械结构错误!未定义书签。3.1传动方式的选择错误!未定义书签。3.2转动惯量的计算错误!未定义书签。3.
2、3喷头的选择124 电机的选择134.1伺服电机和步进电机的对比134.2直流交流伺服电机对比15 4.3负载转矩的计算154.4打印速度的初步估计165 传感器165.1温度传感器对比165.2机械位置传感器185.3压力传感器196 3D打印机的优点及面临问题216.13D打印机的优点216.23D打印技术面临的问题21参考文献22致谢23 ContentsSummary .Abstract . .1 Introduction .2 1.1 Research Status 3D printer at home and abroad.2 1.1.1 Research Status of Fo
3、reign 3D printer.2 1.1.2 Research Status of domestic 3D printers.3 1.2 Trends of 3D printer.3 1.2.1 Future prospects of 3D printing industry.3 1.2.2 3D printing technology for future development.4 1.3 3D printer works and features.4 1.4 The development of innovative and breakthrough.6 1.5 Chapter Su
4、mmary.72 Overall program and structural design.7 2.1 Introduction.7 2.2 The overall design of the framework.8 2.3 Temperature control loop design.8 2.4 XYZ three directional control motor design.9 2.5 Mobile and spray nozzle design volume adjustment.93 Mechanical structure.10 3.1 Select Transmission
5、.10 3.2 Calculation of moment of inertia.11 3.3 Select nozzle.124 Select motor.13 4.1 Comparison of servo motors and stepper motors.13 4.2 Comparison of DC servo motor .15 4.3 The calculated of load torque.15 4.4 Preliminary estimates Print Speed.165 Sensor.16 5.1 Comparison Temperature Sensor.16 5.
6、2 Mechanical position sensor .18 5.3Pressure sensor .19 6 Advantages of 3D printers and the problems faced. 21 6.1 Advantages 3D printer .21 6.2 3D printing technology issues facing the .21References .22Acknowledgements .233D打印机毕业设计【摘要】3D打印是最近两年开始流行的一种快速成形技术, 它以数字模型文件为基础, 通 过逐层打印的方式来构造物体. 我们日常生活中的打印
7、机能打印一些平面纸张材料, 而3D打印机打印出的是立体塑品产品.文章对3D打印的技术体系和国内外产业发展现状、发展态势作了综合介绍，综述3D打印技术的基本概念、发展简史、打印过程原理、应用领域、广泛影响以及面临的问题等.在介绍3D技术的发展历程、3D打印技术的工作原理流程及特点的基础上，分析了3D打印技术的创新点和存在的问题，展望了3D打印技术的未来发展趋势.关键词:3D打印机;快速成型;结构设计;社会制造I3D printer GraduationAuthor: Jiang Yunfei Instructor: Song Hongjun【Abstract】：3D printing is on
8、e of the last two years became popular rapid prototyping technology, which is based digital model files, through over the printed layer by layer approach to construct objects. Our daily lives printer can print some flat sheet material, and 3D printer to print out the three-dimensional plastic goods
9、products. Article on 3D printing technology system status and domestic industrial development, development made a comprehensive presentation situation, review the basic concepts of 3D printing technology, development history, the printing process principles, applications, and the problems faced wide
10、spread impact, etc. In the development process of introduction of 3D technology, working principle and characteristics of the process of 3D printing technology based on the analysis of 3D printing technology innovations and problems, looked to the future development trend of 3D printing technology.Key words：3D printers; rapid prototyping; structural design; social manufactureI引言 随着时代的进步，我们的生活水平日渐提升，同时，人口也在急剧的增长，我们需要越来越多的物品来满足物质生活条件。这就势必造成我们对物品的要求也会越来越高，做工精细、独特且非量产的物品会受广大人们的喜爱。如今，我们
