畢業(yè)設(shè)計：珩齒加工機(jī)床珩磨頭部分的設(shè)計
論文說明書共49頁，字?jǐn)?shù)總計：18647
資料內(nèi)容簡介：
A3-彈簧夾頭.dwg
A2-底座.dwg
A3-法蘭盤.dwg
A2-珩磨輪.dwg
A2-滑座.dwg
A3-偏心盤.dwg
A3-心軸.dwg
A3-圓盤.dwg
A2-主軸.dwg
A0-裝配圖.dwg
中文翻譯.doc
外文原件.pdf
英文原文.doc
摘要.doc
外文.doc
前言.doc
目錄.doc
開題報告和中期報告.doc
翻譯.doc
畢業(yè)設(shè)計論文說明書：珩齒加工機(jī)床珩磨頭部分的設(shè)計.doc
摘要
隨著科學(xué)技術(shù)的發(fā)展，即使原來屬于先進(jìn)的機(jī)床也會變得陳舊、落后，滿足不了產(chǎn)品種類日益增加和質(zhì)量不斷提高的需要，因此有必要以現(xiàn)有的機(jī)床為基礎(chǔ)，對機(jī)床的使用工藝和裝備進(jìn)行革新，對機(jī)床的現(xiàn)有結(jié)構(gòu)進(jìn)行改裝。這樣既可以使現(xiàn)有機(jī)床的加工能力得以提高，同時又能節(jié)約新機(jī)床設(shè)計研發(fā)時間，可以得到許多意想不到得效果。
本次畢業(yè)設(shè)計的題目是珩齒加工機(jī)床的珩磨頭部分設(shè)計，這是在普通車床上面進(jìn)行改進(jìn)設(shè)計的。本改裝采用的是雙面變壓珩磨法，珩磨輪與工件的嚙合關(guān)系、運(yùn)動情況和剃齒大體上相同；其特點(diǎn)是工件帶動珩磨輪正反轉(zhuǎn)動，珩磨輪沿軸線作往復(fù)直線運(yùn)動。但徑向運(yùn)動不像剃齒那樣在每次往復(fù)行程后都有一次進(jìn)給，而是按珩齒所需要的初壓力調(diào)整好珩磨輪與工件的中心距，開車后一次進(jìn)給到預(yù)定的位置。珩齒開始時齒面的壓力較大，隨后逐漸減小，直至接近消失時珩齒結(jié)束。
應(yīng)當(dāng)指出,雖然珩齒的運(yùn)動和剃齒大體相同,珩輪的結(jié)構(gòu)和剃齒刀比較相似,但是珩齒過程的本質(zhì)和剃齒是不相同的,其特點(diǎn)如下：
(1) 珩輪的齒面上均勻密布著磨粒,各磨粒間以粘結(jié)劑相隔.珩磨速度遠(yuǎn)比磨削時低.因此,珩齒切削過程的本質(zhì)是低速磨削﹑研磨和拋光的的綜合過程。
(2) 珩輪的磨?？梢钥闯墒鞘纸咏倪B續(xù)的切削刃,珩齒的過程可以接近于連續(xù)擠壓的過程.因此,珩磨后齒面上的切削紋路很細(xì),光潔度比剃齒高,不會產(chǎn)生冷硬現(xiàn)象。
(3) 珩輪彈性大,不能強(qiáng)行切下誤差部分的金屬,因此,珩齒修正誤差的能力沒有剃齒強(qiáng).而另一方面,珩輪本身的誤差,也就不會全部反映到齒輪上,因此珩輪的精度要求不高,而對珩前的齒輪則要求較高的精度.珩齒主要用于改善表面質(zhì)量。
(4) 珩齒時,齒面間除了沿齒向產(chǎn)生滑動切削外,沿漸開線方向的滑動使磨粒也能切削,于是就構(gòu)成了齒面刀痕的復(fù)雜紋路,使齒面的光潔度提高。
本改裝是在普通車床上進(jìn)行的,主要用于除去齒輪熱處理后的氧化皮及毛刺,可使光潔度從▽6提高到▽8~10，齒輪傳動噪聲也略有降低,生產(chǎn)率很高.但對齒形和齒向誤差的糾正很不穩(wěn)定，有時甚至?xí)过X形誤差有所增大。珩齒效果很大程度上決定于前一道工序加工的精度和熱處理的變形量，一般可應(yīng)用于加工6～8級精度的齒輪。
總之，珩齒由于其具有提高齒面光潔度、降低噪音、效率高、成本低、設(shè)備簡單、操作方便等一系列優(yōu)點(diǎn)，故是一種很好的齒輪精加工方法。
關(guān)鍵字：珩齒加工，珩磨頭，珩磨輪
Abstract
Along with science and technology development, even if originally belongs to the advanced engine bed also to be able to change obsoletely, is backward, could not satisfy the product type toincrease the need day by day which and the quality unceasingly enhanced, therefore had the necessity take the existing engine bed as the foundation, carried on the innovation to the engine bed use craft and the equipment, carried on the reequipment to the engine bed existing structure. Like this both may enable the existing engine bed the processing ability to enhance, simultaneously and can save the new engine bed design research and development time, may obtain many is unexpected the effect.
This graduation project topic is the top horizontal jade piece tooth processes the engine bed honing a forehead minute design, this iscarries on the improvement design above the conventional lathe. This reequipment uses is the two-sided live pressure top horizontal jadepiece bothers, the top horizontal jade piece emery wheel and the work piece mesh the relations, the movement situation and roughly is photogenic with; Its characteristic is the work piece impetus top horizontal jade piece emery wheel pro and con rotation, the top horizontal jade piece emery wheel makes the straight reciprocating main motion along the spool thread. But after the radial motion does not like such each time to move back and forth the travelling schedule all to have time enters gives, but is the initial pressure which needs according to the tophorizontal jade piece tooth adjusts the good top horizontal jade piece emery wheel and the work piece center distance, drives latter time enters for the position which prearranges. The top horizontal jadepiece tooth starts when the tooth face pressure is bigger, afterwards gradually reduces, when close vanishes top horizontal jade piece toothconclusion.
Must point out, although the top horizontal jade piece tooth movement and the more or less the same, a top horizontal jade piece turnof structure and quite is similar, but the top horizontaljade piece tooth process essence and is not same, its characteristic as follows:
(1) On a top horizontal jade piece turn of tooth face even is being densely covered abrasive, each abrasive to the cementing agent is separated by honing the speed far rubs truncates time is lower than Therefore, the top horizontal jade piece tooth cutting process essenceis the low speed rubs truncates grinds and polishes the comprehensive process.
(2) The top horizontal jade piece turn abrasive may regard as is extr..