【正文】 III 目 錄 摘 要 ................................................................... I 第 1章 緒論 ............................................................. 1 齒輪泵概述 ...................................................... 1 齒輪泵發(fā)展趨勢(shì) .................................................. 1 外轉(zhuǎn)子設(shè)計(jì)的基本要求 ............................................ 3 第 2章 外轉(zhuǎn)子的加工工藝設(shè)計(jì) .............................................. 4 零件的分析 ...................................................... 4 零件的作用 ............................................... 4 零件工藝分析 ............................................. 4 工藝規(guī)程設(shè)計(jì) .................................................... 4 確定毛坯的制造形式 ....................................... 4 基面的選擇 ............................................... 5 制定工藝路線 ............................................. 5 機(jī)械加工余量，工序尺寸及毛坯尺寸確定 ..................... 7 第 3章 夾具設(shè)計(jì) ......................................................... 18 拉胎 ........................................................... 18 問(wèn)題的提出 .............................................. 18 定位基準(zhǔn)的選擇 .......................................... 18 定位誤差分析 ............................................ 18 夾緊力 .................................................. 18 胎具結(jié)構(gòu) ................................................ 18 磨胎 ........................................................... 18 IV 問(wèn)題的提出 .............................................. 18 定位基準(zhǔn)的選擇 .......................................... 19 夾具結(jié)構(gòu) ................................................ 19 磨頭 ........................................................... 22 打磨砂輪工具 ................................................... 23 第 4章 內(nèi)曲面成形拉刀設(shè)計(jì) ............................................... 23 粗拉刀設(shè)計(jì) ..................................................... 23 切削部設(shè)計(jì) .............................................. 23 校準(zhǔn)部設(shè)計(jì) .............................................. 29 其它部分及拉刀總長(zhǎng)度 .................................... 30 拉刀強(qiáng)度計(jì)算及拉削力的校驗(yàn) .............................. 33 精拉刀設(shè)計(jì) ..................................................... 34 參 數(shù)選擇 ................................................ 34 校核最大拉削力 maxF ...................................... 37 拉刀強(qiáng)度校驗(yàn) ............................................ 37 拉刀總長(zhǎng)度 L ............................................ 37 結(jié)束語(yǔ) .................................................................. 40 致 謝 ................................................................... 41 參考文獻(xiàn) ................................................................ 42 V CONTENTS Abstract........................................................................................................................................................... II Chapter One Introduction.......................................................................................................................1 Gear Pump Overview............................................................................................................1 Development Trend of gear pump.......................................................................................1 The basic requirements of external rotor design ................................................................3 Chapter Two External rotor design process .........................................................................................4 Parts of the analysis ................................................................................................................4 Parts of the role..........................................................................................................4 Parts Process Analysis..............................................................................................4 Process planning .....................................................................................................................4 Determine the form of blank manufacturing ........................................................4 The choice of the base surface ................................................................................5 Development of process routes ..............................................................................5 Machining allowance, process to determine the size and rough size ................7 Chapter Three Fixture Design ............................................................................................................ 18 Pull tire .................................................................................................................................. 18 Proposed of the problems ..................................................................................... 18 The choice of locating datum............................................................................... 18 Orientation error..................................................................................................... 18 Clamping force ...................................................................................................... 18 Mold structure ........................................................................................................ 18 Tire wear ............................................................................................................................... 18 Proposed of the problems ..................................................................................... 18 VI The choice of locating datum............................................................................... 19 Fixture Structure .................................................................................................... 19 Grinding head .........