【正文】 數控拋光機的設計 目 錄 摘要 ..................................................................... 1 關鍵詞 ................................................................... 1 Abstract ................................................................. 1 Key words ................................................................ 1 引言 ..................................................................... 2 1 數控拋光機的總體設計 ................................................... 3 工藝分析 ............................................................. 3 總體布局 ............................................................. 4 提高拋光機動剛度 ..................................................... 5 減小熱變形 ......................................................... 5 降低噪音 ........................................................... 5 造型設計 ............................................................. 5 主要技術參數的確定 ................................................... 5 尺寸參數 ........................................................... 6 2 數控拋光機的設計計算 ................................................... 6 步進電動機的選擇 ..................................................... 6 步進電動機的工作原理及 特點 ......................................... 6 步進電動機的選擇計算過程 ........................................... 7 滾珠絲杠的設計計算 .................................................. 10 滾珠絲杠螺母的特點 ................................................ 10 滾珠絲杠螺母的選擇原則 ............................................ 10 滾珠絲杠的選擇與校核 .............................................. 10 滾動導軌的選擇與計算 ................................................ 12 滾動導軌的特點 .................................................... 12 導軌的設計計算 .................................................... 12 主軸電動機的選擇 .................................................... 14 滾珠絲杠軸承的選擇 .................................................. 15 軸承端蓋外形尺寸的確定 .............................................. 15 步進電動機軸聯(lián)接鍵的選擇 ............................................ 15 主軸電動機軸聯(lián)接鍵的選擇 ............................................ 15 3 數控拋光機的控制系統(tǒng)設計 .............................................. 17 系統(tǒng)設計方案的構成 .................................................. 16 單片機介紹 .......................................................... 16 數控拋光機中各芯片的選用 ............................................ 17 菏澤學院本科畢業(yè)設計（論文 ） 2 控制信息 ............................................................ 17 控制信號對應值 .................................................... 17 電動機各項驅動數據 ................................................ 18 延時程序設計 ........................................................ 18 延時程序時間計算 .................................................. 18 延時程序設計 ...................................................... 18 結論 .................................................................... 19 參考文獻 ................................................................ 20 致 謝 .................................................................. 21 數控拋光機的設 計 1 數控拋光機的設計 機械電子工程專業(yè)學生 武云龍 指導教師 祝鳳金 摘要 ：在現代工業(yè)生產中，零件的復雜程度和精度要求迅速提高，傳統(tǒng)的普通機床已經越來越難以適應現代化生產的要求，而數控機床具有高精度、高效率、一機多用，可以完成復雜型面加工的特點，特別是計算機技術的迅猛發(fā)展廣泛應用于數控系統(tǒng)中，數控裝置的基本功能幾乎全由軟件來實現，硬件幾乎能通用，從而使其更具加工柔性，功能更加強大。我國目前仍以手工研磨拋光為主，特別是模具表面的精加工是模具加工中未能很好解決的難題之一。拋光研的自動化、智能化是重要的發(fā)展 趨勢。數字式拋光機這種拋光工具采用數字化控制，數字式顯示和控制工藝參數，備有整套磨頭及磨料，半自動拋光，具有體積小、使用方便的優(yōu)點。 關鍵詞 ：拋光機；精度 ；數控 Numerical Control Polishing Machine Design Student majoring in Machinery and Electronics Engineering Wu yunlong Tutor Zhu fengjin Abstract: In modern industrial production, the plexity of the parts and precision requirements increase rapidly. The conventional machine tool has bee increasingly difficult to adapt to modern production requirements. NC machine tools with high precision, high efficiency, the use of a machine, can plete plex surface machining features. Especially the rapid development of the puter technology widely used in CNC system, The basic function of the CNC device almost all realized by software, hardware can almost universal, so as to make it more flexible processing, more powerful. China is still a manual grinding and polishing, in particular mold machining mold processing is to solve the problem very well. Polishing grinding automation, intelligence is the important development. This digital polishing machine polishing tool with digital control, digita