【正文】
n the normal operation of the pump [1]. The design is aimed at improving the processing efficiency of the filler lid design correct processing routes, which we first carried out a careful analysis on the structural characteristics of the filler lid and process, and then determine a reasonable processing, processing the program requires a simple, easy to operate, and can guarantee machining quality. Processing of filler lid will directly affect the quality of performance and service life of the machine. Processing a total of four steps in order to develop a process planning are (1) CAXA entity designed ponents analysis (3) process design: including the development of a process route, select the reference plane, select the tools, machining allowances, process size and rough determination of the dimensions and calculate the basic working hours (4) special fixture design. (5) preparation of process documentation [2]. Key words: shaft; caxa; vacuum 目 錄 第一章 零件圖樣分析 .........................................1 零件的功用 ....................................................1 零件 結(jié)構(gòu) 分析 .................................................1 第二章 毛坯的選 擇 ............................................2 選擇毛坯應(yīng)考慮的因素 ..........................................2 毛坯的 制造方法及其工藝特征 ....................................2 毛坯的 制造方法 .........................................3 工藝特征 ...............................................3 毛坯尺寸、公差與加工余量 ......................................3 毛坯公差 ...............................................4 確定機(jī)械加工余量 .......................................4 確定毛坯尺寸 ...........................................4 第三章 工藝過(guò)程設(shè)計(jì) ..........................................5 定位基準(zhǔn)的選擇 ................................................5 粗基準(zhǔn)的選擇原則 .......................................6 精基準(zhǔn)的選擇原則 .......................................7 零件表面加工方法的選擇 .........................................7 工藝規(guī)程的擬定 ................................................8 制定工藝規(guī)程的原則 .....................................8 制訂工藝路線 ...........................................8 工藝方案的比較與分析 ...................................9 第四章 工序設(shè)計(jì) .............................................13 選用機(jī)床 .....................................................13 工藝裝備的選擇 ................................................13 . 1 選用道具 ...................................................13 選用夾具 .........................................13 選用量具 ....................................................13 第五章 專用夾具設(shè)計(jì) ........................................14 問(wèn)題的指出 .................................................14 夾具設(shè)計(jì) ...................................................14 定 位誤差的分析 .............................................14 夾具設(shè)計(jì)及操作的簡(jiǎn)要說(shuō)明 ...................................14 結(jié)束語(yǔ) ......................................................16 致謝 ............................................... .........17 參考文獻(xiàn) ............................................... .....18 三江學(xué)院 20xx 屆本科生畢業(yè)設(shè)計(jì)(論文) 1 第一章 零件圖樣分析 零件的功用 套筒類零件在機(jī)械裝備中有著非常重要的地位 ,它的應(yīng)用范圍很廣 ,幾乎所有機(jī)械都離不開(kāi)它。 本次設(shè)計(jì)旨在提高填料箱蓋的加工效,設(shè)計(jì)正確的加工工藝路線,由此我們首先對(duì)填料箱蓋的結(jié)構(gòu)特征和工藝進(jìn)行了仔細(xì)的分析,然后確定了一套合理的加工