【正文】 design is being more perfect under the help of teachers and the discussion between students. The exchange of technology experience is an important way to improve the mold design level. Economic globalism can never realize without the exchange of technology. KEY WORDS: mold， plastic， trolley wheel， standardization， exchange of technology III 目 錄 前 言 ....................................................................................................... 1 第 1 章 前期準備 .................................................................................... 2 了解設計任務書 ......................................................................... 2 接受任務書 ....................................................................... 2 任務書分析 ....................................................................... 2 資料準備及時間安排 ...................................................... 2 第 2 章 分析工藝方案的制定依據 ....................................................... 4 制件應用領域 ............................................................................. 4 滾輪的使用環(huán)境 .............................................................. 4 制件工藝性分析 ......................................................................... 4 材料分析 ........................................................................... 4 結構分析 ........................................................................... 5 第 3 章 核心設計及注射機初選 ........................................................... 7 選擇分型面 ................................................................................. 7 分型面的設計方案 .......................................................... 7 分型面的確定 .................................................................. 8 型腔設計 ................................................................................... 10 型腔的數目 ..................................................................... 10 型腔的布置 ..................................................................... 10 裝配草案初定 ........................................................................... 10 分析設計總結構 ............................................................ 10 繪制裝配初稿 .................................................................11 修改草稿定方向 ............................................................ 12 注射機的初選 ........................................................................... 13 注射機的種類及結構 .................................................... 13 注射機初定 ..................................................................... 13 第 4 章 模具結構設計 .......................................................................... 15 凸凹模結構設計 ...................................................................... 15 IV 凸模（型芯）設計 ........................................................ 15 瓣合凹模（滑塊）設計 ................................................ 15 澆注系統(tǒng)及排溢系統(tǒng)的結構設計 .......................................... 16 流道的設定 ..................................................................... 16 澆口的設定 ..................................................................... 17 冷料穴的設定 ................................................................ 18 排氣槽的設定 ................................................................ 19 溫度調節(jié)系統(tǒng)的結構設計 ...................................................... 19 溫度調節(jié)對生產率的影響 ............................................ 19 冷卻位置的選擇 ............................................................ 20 冷卻水道的布局 ............................................................ 20 脫模機構的設計 ....................................................................... 21 推出距離計算 ................................................................ 21 推出結構的設定 ............................................................ 22 導向和定位的結構設計 .......................................................... 23 導柱導套的布局 ............................................................ 23 導柱導套的結構設定 .................................................... 24 螺釘和銷釘的布局 ........................................................ 24 模具與注射機連接結構設計 .................................................. 25 定位圈的選擇 ................................................................ 25 動模座板孔徑及模具安裝方式 .................................... 25 第 5 章 繪制裝配圖及零件圖 ............................................................. 26 成形零件的尺寸計算 .............................................................. 26 制件尺寸精度分析 ........................................................ 26 凸凹模對應尺寸計算 .................................................... 26 模具標準化 ............................................................................... 29 模具標準化意義 ............................................................ 29 模具的標準化程度選擇 ................................................ 29 繪制裝配草圖 ................................................................ 30 相關數據校核 ........................................................................... 31 V 推桿強度校核 ................................................................ 31 最大注射量校核 ............................................................ 31 注射壓力校核 ................................................................ 31 鎖模力校核 ..................................................................... 31 安裝部位的尺寸校核 .................................................... 32 開模行程和頂出結構的校核 ........................................ 32 裝配圖修善 ............................................................................... 32 注射機的最終確定 ........................................................ 32 根據數據變動修改裝配圖 ............................................ 33 完善裝配圖 ..................................................................... 33 零件圖繪制 ............................................................................... 33 零件的分類及部分精度 ................................................ 34 主要零件的加工方法 ........................