【正文】 , storage electric lighting system and image acquisition system ,plete the tasks such as the plete 3 d modeling and motion simulation, and draw multifunction mechanical arm assembly drawing, parts drawing. Keywords: Mechanical arm ； Transmission of the whorl； Fourbar mechanism；Storage electric lighting； Image acquisition 北方民族大學 2021屆 本科生畢業(yè)論文 1 目 錄 第 1 章緒論 ...................................................................................................................... 2 .............................................................................................. 2 目的 .......................................................................................................... 2 意義 .......................................................................................................... 2 本課題的任務要求和設計內(nèi)容 .............................................................................. 2 任務要求 .................................................................................................... 2 設計內(nèi)容 ................................................................................................. 3 設計方案 ............................................................................................................ 3 設計參數(shù) .................................................................................................... 3 設計方案說明 ............................................................................................. 3 結構簡圖及簡單運動分析 ........................................................................... 4 第 2 章 機械設計 ............................................................................................................. 6 夾持器的設計 ..................................................................................................... 6 計算自由度 ................................................................................................ 6 機構設計 .................................................................................................... 6 基本位置確定 ............................................................................................. 6 機構的運動分析 ......................................................................................... 7 受力分析 .................................................................................................... 8 結構尺寸的確定 ....................................................................................... 11 強度校核 .................................................................................................. 15 連接用的銷釘?shù)?選型和強度校核 ............................................................... 16 直管段的設計 ................................................................................................... 17 選材 ......................................................................................................... 17 尺寸的確定 .............................................................................................. 17 傳動機構的設計 ................................................................................................. 19 方案比較 .................................................................................................. 19 傳動機構設計 ........................................................................................... 19 機構的尺寸設計 ...................................................................................... 20 第 4 章 電路的選型設計 ................................................................................................. 24 照明系統(tǒng)的選型設計 .......................................................................................... 24 圖像采集系 統(tǒng)的選型設計 ................................................................................