極限開關(guān)座機械加工工藝規(guī)程及119.5底面銑削夾具設(shè)計【銑前端面B平面夾具+優(yōu)秀課程畢業(yè)設(shè)計+含4張CAD圖紙+帶19頁加正文7500字】-jjsj04
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外文翻譯
夾具體零件圖.dwg
夾具裝配圖.dwg
工序卡片.dwg
工藝過程卡片.doc
文件清單.txt
機械加工工序卡片 14張.doc
極限開關(guān)座-銑削119.5底面夾具設(shè)計.doc
極限開關(guān)座毛坯.dwg
極限開關(guān)座零件圖.dwg
設(shè)計說明書.doc
說明書封面.doc
目 錄
一 設(shè)計任務(wù)書………………………………………………………………………………… 2
1 設(shè)計題目………………………………………………………………………………… 2
2 課程設(shè)計目的…………………………………………………………………………… 3
3 設(shè)計內(nèi)容要求…………………………………………………………………………… 4
二 有關(guān)零件說明……………………………………………………………………………… 5
1 零件的作用及工作條件………………………………………………………………… 5
2零件的結(jié)構(gòu)及工藝特點………………………………………………………………… 5
3零件技術(shù)要求分析及主加工面的確定………………………………………………… 5
4零件結(jié)構(gòu)工藝性及選材分析…………………………………………………………… 6
三 有關(guān)設(shè)計條件的說明……………………………………………………………………… 6
四 毛坯的確定………………………………………………………………………………… 6
1 確定毛坯…………………………………………………………………… 6
2 毛坯精度等級……………………………………………………………… 6
3 估計加工表面的機械加工總余量………………………………………… 6
4 毛坯技術(shù)要求……………………………………………………………… 6
五 有關(guān)基準選擇說明………………………………………………………………………… 7
1 正確選擇定位基準……………………………………………………………………… 7
六 擬定工藝路線及重點工序的說明………………………………………………………… 8
1確定各加工表面的加工方法機加工方案……………………………………………… 8
2 確定工序集中與分散…………………………………………………………………… 9
3 加工工藝方案的擬定…………………………………………………………………… 9
七 確定加工余量，工序尺寸和公差………………………………………………………… 11
1 確定各粗銑表面的加工余量及工序尺寸………………………………………………11
2 確定各須精加工面的加工余量及工序尺寸……………………………………………11
3 根據(jù)以上數(shù)據(jù)繪制零件毛坯圖?！?2
八 確定一個工序的切削用量…………………………………………………………………13
1 確定刀具…………………………………………………………………………………13
2 確定進給量………………………………………………………………………………13
3 確定轉(zhuǎn)速和銑削速度……………………………………………………………………13
九 時間定額的確定……………………………………………………………………………13
1 計算機動工時……………………………………………………………………………13
2 計算工序輔助工時………………………………………………………………………14
3 計算工序作業(yè)工時………………………………………………………………………14
十 夾具設(shè)計……………………………………………………………………………………15
1 定位基準的選擇…………………………………………………………………………15
2 定位元件與夾緊機構(gòu)的確定……………………………………………………………15
十一 切削力和夾緊力（包括油、氣缸直徑）的計算………………………………………15
1 切屑力的計算……………………………………………………………………………15
2 計算夾緊力………………………………………………………………………………16
3 確定夾具體機構(gòu)（見附圖）……………………………………………………………17
附參考書和資料目錄………………………………………………………………………… 18
一 設(shè)計任務(wù)書
1 設(shè)計題目
(1)任務(wù)：極限開關(guān)座機械加工工藝規(guī)程及119.5底面銑削夾具設(shè)計。
(2)被加工零件零件圖：
極限開關(guān)座零件圖
2 課程設(shè)計目的
機械制造工藝學是以機械制造中的工藝問題為研究對象，實踐性較強的一門學科，學生在學完了工藝課后并完成了生產(chǎn)實習的基礎(chǔ)上，還應(yīng)通過課程設(shè)計受到一次理論聯(lián)系實際的綜合訓練，培養(yǎng)運用所學知識分析和解決機械制造工藝技術(shù)問題的能力。通過課程設(shè)計，學生應(yīng)在下述各方面得到鍛煉：
(1) 能熟練運用機械制造工藝學課程中的基本理論以及在生產(chǎn)實習中學到的實踐知識，正確的解決一個零件在加工中的定位。夾緊以及工藝路線安排、工藝尺寸確定等問題，保證零件的加工質(zhì)量。
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