【正文】 目 錄 摘要 ..............................................................................................................................Ⅰ Abstract.........................................................................................................................Ⅱ 引言 ................................................................ 2 1緒論 .............................................................. 2 國內(nèi)外 3D 打印 機(jī) 的研究現(xiàn)狀 .................................... 2 國外 3D 打印 機(jī) 的研究現(xiàn)狀 .................................. 2 國內(nèi) 3D 打印 機(jī) 的研究現(xiàn)狀 .................................. 3 3D 打印 機(jī) 的發(fā)展趨勢 .......................................... 3 3D 打印產(chǎn)業(yè)的未來發(fā)展前景 ................................. 3 3D 打印技術(shù)未來發(fā)展的主要趨勢 ............................. 4 3D 打印 機(jī) 的 工作原理及特點(diǎn) .................................... 4 發(fā)展創(chuàng)新與突破 ............................................... 6 2 總體方案及結(jié)構(gòu)設(shè)計 ................................................ 7 引言 ......................................................... 7 總體 框架的設(shè)計 ............................................... 8 溫度控制回路的設(shè)計 ........................................... 8 XYZ 三方向控制電機(jī)的設(shè)計 ..................................... 9 噴頭移動及噴出量調(diào)節(jié)的設(shè) 計 .................. 錯誤 !未定義書簽。 3 機(jī)械結(jié)構(gòu) ......................................... 錯誤 !未定義書簽。 傳動方式的選擇 .............................. 錯誤 !未定義書簽。 轉(zhuǎn)動慣量的計算 .............................. 錯誤 !未定義書簽。 噴頭的選擇 .................................................. 12 4 電機(jī)的選擇 ....................................................... 13 伺服電機(jī)和步進(jìn)電機(jī)的對比 .................................... 13 直流交流伺服電機(jī)對比 ........................................ 15 負(fù)載轉(zhuǎn)矩的計算 .............................................. 15 打印速度的初步估計 .......................................... 16 5 傳感器 ........................................................... 16 溫度傳感器對比 .............................................. 16 機(jī)械位置傳感器 .............................................. 18 壓力傳感器 .................................................. 19 6 3D 打印機(jī)的優(yōu)點(diǎn)及面臨問題 ........................................ 21 3D 打印機(jī)的優(yōu)點(diǎn) ............................................. 21 3D 打印技術(shù)面臨的問題 ....................................... 21 參考文獻(xiàn) ........................................................... 22 致謝 ............................................................... 23 Contents Summary ...........................................................Ⅰ Abstract ................................................. ........Ⅱ 1 Introduction .....................................................2 Research Status 3D printer at home and abroad..................2 Research Status of Foreign 3D printer........................2 Research Status of domestic 3D printers.......................3 Trends of 3D printer...........................................3 Future prospects of 3D printing industry...................3 3D printing technology for future development..............4 3D printer works and features..................................4 The development of innovative and breakthrough.................6 Chapter Summary................................................7 2 Overall program and structural design.............................7 Introduction...................................................7 The overall design of the framework............................8 Temperature control loop design................................8 XYZ three directional control motor design.....................9 Mobile and spray nozzle design volume adjustment...............9 3 Mechanical structure.............................................10 Select Transmission..........................................10 Calculation of moment of inertia..............................11 Select nozzle.................................................12 4 Select motor....................................................13 Comparison of servo motors and stepper motors.................13 Comparison of DC servo motor .................................15 The calculated of load torque.................................15 Preliminary estimates Print Speed............................16 5 Sensor...........................................................16 Comparison Temperature Sensor.................................16 Mechan