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超聲磨削裝置
摘 要
旋轉(zhuǎn)超聲磨削是在傳統(tǒng)機械磨削的基礎(chǔ)上，將超聲振動加入到磨削工具上的一種新型的復(fù)合加工方法。該方法不僅保留了傳統(tǒng)機械磨削的一些優(yōu)良特性，又因加入超聲振動后，能較大地提高加工效率，有效地改善工程陶瓷、復(fù)合材料等難加工材料磨削表面質(zhì)量。本文旨在研制出旋轉(zhuǎn)超聲磨削裝置，并利用該裝置進行了一些實驗研究。全文主要內(nèi)容概括如下：
1. 討論分析了旋轉(zhuǎn)超聲磨削的材料去除機理。旋轉(zhuǎn)超聲磨削中材料去除機理同時具有沖擊（磨具上的磨粒對工件表面的高頻高速沖擊）和磨蝕（磨削工具的旋轉(zhuǎn)和進給運動可模型化為磨削過程）兩種作用。
2. 研制了一種新型旋轉(zhuǎn)超聲磨削裝置。該裝置能以附件的形式安裝在數(shù)控機床上或普通機床上，進行常見表面、甚至一些較復(fù)雜型面的旋轉(zhuǎn)超聲磨削加工。
關(guān)鍵詞：超聲加工意義，旋轉(zhuǎn)超聲磨削，結(jié)構(gòu)設(shè)計與校核，
Abstract
Rotary ultrasonic grinding (RUG) is a new machining method which integrates rotary movement of traditional grinding with ultrasonic oscillation. This method can keep down some excellent grinding characters of Mechanical grinding, greatly enhance process rate and effectively improve the effect of grinding surface of difficult-to-cut materials (stainless steel and composite material and the like). The aim of this paper is that we design and manufacture the grinding device of rotary ultrasonic machining, and carry out some research by using developed develop. The main content of this paper can be sum up as follows:
1. We have analysis the material remove mechanism of RUG, and material
remove of rotary ultrasonic grinding conclude on high frequency impact of abrasive particles on grinding tool against work piece and ablation that rotary and in-feed movement of grinding tool can form grinding process.
2. A new grinding device of rotary ultrasonic machining have been designed and manufactured. This device can be installed on numerical control machine or common machine tool as an accessory and can carry out rotary ultrasonic grinding for usual surface and even some complicated surface.
Key words: ultrasound processing significance ; Rotate ultrasound grind ;
Structure design and checking
目 錄
前言 1
1.緒論 2
1.1 超聲的發(fā)展史 2
1.2超聲加工的原理及特點 2
1.3 工程陶瓷材料的使用價值及加工技術(shù) 3
1.4超聲加工陶瓷的意義及前景 7
2. 設(shè)計說明書 8
2.1超聲磨削裝置的結(jié)構(gòu)設(shè)計 8
2.1.1超聲加工設(shè)備及其組成部分 8
2.1.2初步結(jié)構(gòu)設(shè)計 8
2.1.3 結(jié)構(gòu)的比較 10
2.1.4 最后結(jié)構(gòu)的確定 11
2.2 裝置中的各部件的設(shè)計及校核 13
2.2.1 電機的計算與選擇 13
2.2.2 變幅桿的設(shè)計與計算 15
2.2.3 壓電陶瓷的選擇 17
2.2.4 軸強度的較核 18
2.2.5 鍵的校核 19
3.總結(jié)與展望 21
3.1總結(jié) 21
3.2展望 21
參考資料 23
致謝 24
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超聲磨削裝置
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