三维总装图
并联3D打印机结构设计与控制
Design and Control of Parallel 3D Printer Structure
摘要
3D打印技术在20世纪90年代中期出现，经过十几年的发展，由最开始的打印机数量之少，和受到打印材料单一的限制，打印产品比较单一，到现在打印方法多样，涉及领域广泛，随着3D打印技术的兴起，使得许多传统加工遇到的问题得到解决，缩短了产品生产周期，提高了生产效率。
本文根据设计任务书的具体要求，对并联3D打印机的机械结构进行设计计算，其中包括驱动元件步进电机的选型计算与强度校核、传动机构的选型计算与强度校核，这其中包括同步带的选型计算与强度校核，以及为了保证3D打印机的精度，采用张紧轮对同步带进行预紧。因为并联式3D打印机的运动方式是将同步带轮的旋转运动转换成滑块沿导轨直线运动，所以对滑块连杆机构进行选型计算与强度校核。接着3D打印技术的国内外发展现状进行了介绍，阐述了3D打印的优势与不足，介绍了3D打印的工作原理，几种典型的3D打印成型方式，和成型材料。介绍了3D打印机的硬件控制系统，选择Arduino作为控制器，A4988作为步进电机驱动器，ramps1.4作为控制板。
关键词：3D打印强度并联Arduino
Abstract
3D printing technology emerged in the mid-1990s. After more than 10years of development, the number of printers from thevery beginningwas small, and the printing materialswere limited. The printing productswere relatively simple. Now the printing methods are diverse, covering awide range of fields. With the rise of 3D printing technology, many of the problems encountered in traditional processing have been solved, shortening the production cycle and increasing the production efficiency.
According to the specific requirements of the graduation design task book, the paper designs and calculates the mechanical structure of the parallel 3D printer, including the selection calculation and strength check of the stepping motor of the drive element, the selection calculation and the strength check of the transmission mechanism. Including timing belt selection calculation and strength check, and in order to ensure the accuracy of the 3D printer, the tension pulley is used to pre-tighten the timing belt. Because the parallel type 3D printer's movement method is to convert the rotational motion of the timing belt pulley into a linear movement of the slider along the guide rail, the selection and calculation of the slider linkage mechanism and the strength check are performed. Then the development status of 3D printing technology at home and abroadwas introduced. The advantages and disadvantages of 3D printingwere described. Theworking principles of 3D printing, several typical 3D printing methods, and molding materialswere introduced. The hardware control system of the 3D printerwas introduced. The Arduino controllerwas selected as the controller, the A4988was used as the stepper motor driver, and the ramps1.4was used as the control board
Keywords：3D printing strength in parallel Arduino
目录
1绪论1
1.1选题的背景与意义1
1.1.1选题的背景1
1.1.2选题的意义1
1.2 3D打印技术的发展现状3
1.2.1国外发展现状3
1.2.2国内发展现状3
1.3研究的目的与意义5
1.4的主要内容5
1.5章节安排5
2总体方案的设计5
2.1并联3D打印的系统概述5
2.2并联3D打印机械结构系统5
2.3并联3D打印机的硬件控制系统7
2.4并联3D打印机的软件控制系统11
2.5 3D打印机的工作机理分析及机构设计方案11
2.5.1 3D打印的原理11
2.5.2 3D打印累计技术原理12
2.5.3几种工艺性能的对比14
2.5.4 3D打印所用的材料14
2.6五种工艺打印耗材14
2.7串并联3D打印机对比14
3并联3D打印机机械结构的设计15
3.1结构组成与工作原理15
3.2构型设计16
3.3整体尺寸的计算16
3.4连杆长度的确定与强度的校核17
3.5电机的选型与计算18
3.6同步带的选型与计算22
3.6.1传动方案的选择22
3.6.2选型计算与寿命校核23
3.7同步带轮的设计选取25
3.8导轨的选择计算与强度校核26
3.9滚动轴承27
4 3D打印编程技术与通用算法27
4.1 3D打印机固件开发环境27
4.2 3D打印的数据处理29
4.3 3D打印与Gcode 29
5总结与展望30
5.1全文总结30
5.2展望32
参考文献33
致谢34
附录35
总装图A0
LED支座A3
传动机构A1
挡块A3
电机支座A3
电路
风扇支架A3
滑车连杆机构A1
滑架A3
框架支撑板A3
连接杆A3
连接器A3
热床A3
同步带轮A3
橡胶脚A3
支撑板A3
设计目录
设计所包含文件
同步带的选型与计算
摘要部分
字数统计
整体尺寸的计算
设计计算总预览
