3D打印机设计
摘 要
三维印刷(3 d打印),即一种快速成型技术，它使用的材料通常有塑料或者金属粉末之类的能够粘合的，设计零件的模型的过程中有室友到电脑 ，逐层打印成型的技术是三维打印机技术的核心。在过去，我们设计产品的时候，其中包括工业设计和磨具的生产，都是需要制造产品的模型，但是现在，一些产品能够使用3D打印机直接打印出产品，像一些非常重要的产品（比如髋关节或牙齿，以及在飞机上的零部件）现在有一些这方面的产品已经使用三维打印出来了。现在我们需要使三维打印机在使用方面推广开来，让更多的人了解三维打印技术真的能给人们带来的便利。一般情况下，三维打印技术需要借助数字技术和特殊的材料完成。3D打印机这些年来产量和销售数量一直在快速的增长，制造的成本一直在降低，销售的价格也在降低。因此，三维打印技术引起了各个领域人的关注，这其中包括生产界，学术界，一些政策方针的制定者和一些生意投资人等，它是一个全新的产业，吸引更多人的关注。和过去的方式向比较的话，现在的三维打印技术更加的方便，能够打印出很机构难的工艺品。还有一方面就是，过去的模型一般是由产品的设计者先做出一个比例小的,批量生产再由工匠看着模型制作，但是他们的水平不一致，做出来的产品和实际的相差较大,如果是通过三维打印机来打印的，那么产品的还原效果就相当好，可以得到理想的艺术品。
这次设计的3D打印机就要是当前市场比较流行的，对它的工作原理和发展现状，从查找的资料了解，设计3D打印机的构型方案。根据设计方案，对电机、轴承、带轮及其附属机构进行选型计算，并进行应力校核。 关键词: 3D打印机；方案设计；结构设计
Abstract
Three dimensional printing (3 d printing), namely one sort of rapid prototyping technology, It uses materials such as plastic or metal powders that can be bonded., such as powder metal or plastic to construct objects by means of step by step a printing technology.It used in the mold manufacturing, industrial design, and other fields has been used in the manufacture of the model, is now gradually used for direct manufacturing of some products.In particular, some high value applications (such as hip or teeth, or some parts of the plane) has been using the technology of printing components.\d printing\means that the popularization of the technology.3 d printing is usually adopt digital printer.Production and sales for the printer in the 21st century has got tremendous growth, its price is also gradually decreased.3 d printing technology, and the resulting new industry pattern become academia, industry, investors and policy makers to focus and competition for the new direction of science and technology , its application field is very broad.3 d printing technology provides a complex art production possibilities, it is easier to implement than traditional mould process manufacturing.In addition, the large size artwork, traditional methods are mostly designersLet a small part of the work, then make a large scale according to the model and the craftsme number , artisans have different level of high and low, eventually work distortion degree is big, but by three dimensional printing technology, the target model can adjust the proportion within the computer, by using print production with high efficiency, high precision can achieve high precision work of art.
In this paper, the design content of working principle and development present situation of the research on 3 d printer, according to the survey results, which has been widely applied for the current is analyzed by 3 d printers, characteristic of each structure, design of a 3 d printer configuration scheme.According to the design scheme of bearing, pulley, selection of gear and its affiliates.
Keywords: 3D printer；scheme design；structure design
目 录
引言 ................................................................................................................................... 1
1 3D打印机的发展 ................................................................................................... 1
1.1 打印机国内外发展现状 ............................................................................................ 1 1.2 3D打印的发展趋势 ................................................................................................... 2 1.2.1 3D打印产业未来的发展前景 ............................................................................... 2 1.2.2 3D打印技术未来发展的主要趋势 ....................................................................... 2 1.3 发展创新与突破 ........................................................................................................ 3 1.3.1 3D打印应用领域的拓展延伸 ............................................................................... 3 1.3.2 3D打印速度尺寸和技术日新月异 ....................................................................... 3 1.3.3 设计平台革新 ........................................................................................................ 3 1.4 本文研究的内容 ........................................................................................................ 4 1.5 研究的意义 ................................................................................................................ 4
2 3D打印机方案设计 .............................................................................................. 5
2.1 3D打印机结构原理 ................................................................................................... 5 2.2 3D打印机方案认证 ................................................................................................... 6 2.3 打印机总体方案 ........................................................................................................ 7 2.4 3D打印机的特点 ....................................................................................................... 7 2.4 本章小结 .................................................................................................................... 8
3 3D打印机设计 ........................................................................................................ 9
3.1设计参数 ..................................................................................................................... 9 3.2 3D打印机整体尺寸的计算 ....................................................................................... 9 3.3 连杆长度的确定和校核 ............................................................................................ 9 3.3.1确定连杆的长度 ..................................................................................................... 9 3.3.2连杆强度的校核 ................................................................................................... 11 3.4 电机的选择 .............................................................................................................. 11 3.4.1电机扭矩的校核 ................................................................................................... 13 3.5 传动方案的设计 ...................................................................................................... 14 3.5.1 皮带类型的选择 .................................................................................................. 14 3.5.2 皮带的校核 .......................................................................................................... 16 3.6立柱的校核计算 ....................................................................................................... 19 3.6.1 拉伸强度的校核 .................................................................................................. 19 3.6.2弯曲强度校核 ....................................................................................................... 19
3D打印机设计毕业设计论文
