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目 錄 1 前 言································· ····························1 2 總體方案論 證································· ·····················3 2.1 被加工零件分 析································· ··············3 2.2 毛坯的選 擇································· ··················3 2.3 基準(zhǔn)選 擇································· ····················5 2.4 擬訂機(jī)械加工工藝路 線································· ········5 2.5 確定機(jī)械加工余量、工序尺寸及公 差······························7 2.6 選擇機(jī)床設(shè)備及工藝裝 備································· ······7 3 金屬切削用量的選擇與計(jì) 算································· ···8 3.1 刀具的選 擇································· ··················8 3.2 切削用量的選擇以及計(jì) 算································· ······8 4 機(jī)械傳動(dòng)裝置的總體設(shè) 計(jì)································· ···········9 4.1 分析和擬訂傳動(dòng)裝 置································· ··········9 4.2 減速機(jī)的選 擇································· ···············9 4.3 帶輪的設(shè)計(jì)計(jì) 算································· ·············10 5 彈簧夾頭的特點(diǎn)以及設(shè)計(jì)計(jì) 算································· ·····14 5.1 彈簧夾頭的介 紹································· ·············15 5.2 彈簧夾頭的夾緊力的影響因 素································· ·15 6 軸的強(qiáng)度校 核································· ···················16 6.1 求軸上載 荷································· ·················16 6.2 繪制彎矩圖和扭矩 圖································· ·········16 6.3 彎矩合成強(qiáng)度校 核································· ···········16 6.4 疲勞強(qiáng)度安全系 數(shù)································· ···········16 7 結(jié) 論································· ·····················21 參考文 獻(xiàn)································· ·····················22 致 謝································· ·····················23 附 錄································· ·····················24