【正文】 .................................................... 40 問題的提出 ................................................................ 40 夾具設計 ................................................................... 41 定位誤差的分析 ........................................................ 43 夾具設計及操作的簡要說明 ..................................... 43 工序 70 的夾具設計 ............................................................ 44 問題的提出 ................................................................ 44 夾具設計 ................................................................... 44 定位誤差的分析 ........................................................ 47 夾具設計及操作的簡要說明 ..................................... 47 第 4 章 機床夾具優(yōu)化設計及經(jīng)濟效益 ........................................... 48 優(yōu)化設計分析 ........................................................................ 48 成組夾具成本 ............................................................... 48 優(yōu)化設計的現(xiàn)實意義 .................................................. 49 機床夾具柔性化 .................................................................... 49 機床夾具經(jīng)濟效益分析 ........................................................ 50 結(jié) 論 ................................................................................................. 52 致 謝 ................................................................................................. 53 參考文獻 ............................................................................................. 54 CA6140 車床撥叉 831006 加工工藝規(guī)程及夾具設計 V Contents Abstract ............................................................................................... Ⅰ Chapte r 1 Introduction ..................................................................... 1 The signifi cance of the fixture design .................................. 1 Fixture design research overview ......................................... 2 The definition of a fixture ........................................... 2 Fixture development .................................................... 2 Design of jigs and fixtures to solve the main proble ms ............................................................... 3 Functions of fixtures ............................................................. 3 Fixture position .............................................................. 4 The basic ponents of fixtures ................................ 4 The other ponent of the fixture s ............................ 4 Fixture of classification ........................................................ 5 According to the mon characteristics of classification fixtures .................................................. 5 The machine tool used by fixture classification .......... 5 Use the advantages of fixtures .............................................. 6 Design of machinetool fixtures ........................................... 7 Basic requirements for the design of fixtures .............. 7 Production on his proposed new requirements ............. 7 Fixture design characteristics ............................................... 8 Develop ment of modern fixtures sent to ............................... 9 Chapte r 2 The co mpilation of proce dures ..................................... 10 Part of the analysis ............................................................. 10 Part of the role ........................................................... 10 Parts of the Process Analysis ......................................11 Determine the form of blank manufacturing ....................... 12 CA6140 車床撥叉 831006 加工工藝規(guī)程及夾具設計 VI The choice of base level ..................................................... 13 Develop route...................................................................... 14 Select the processing equipment and tooling, fixtures , measuring tools .................................................................. 15 Allowance, dimensions and fur dimension ......................... 16 Establishment of cutting and basic work ............................ 19 Chapte r 3 Fixture de sign ................................................................ 36 Fixture design of the third w orking procedure .................. 37 Proble m ...................................................................... 37 Fixture design ............................................................ 40 The analysis of positioning error ............................... 40 Fixture design and a brief description of the operation .... 40 Fixture design of the fifth working procedure .................... 40 Proble m ...................................................................... 40 Fixture design ............................................................ 41 The analysis of positioning error ............................... 43 Fixture design and a brief description of the operation ... 43 Fixture design of the seventh w orking procedure ............... 44 Proble m ...................................................................... 44 Fixture design ............................................................ 44 The analysis of positioning error ............................... 47 Fixture design and a brief description of the operation . 47 Chapte r 4 Fixture de sign optimiz ation and economic be ne fits .... 48 Optimal Design and Analysis .............................................. 48 Group fixture costs .................................................... 48 The practical significance of design optimization ..... 49 Flexible Machine Tool Fixture ............................................ 49 Economic Analysis of jigs and fixtures .............................. 50 Conclusion .......