CQM6132主軸前軸承加工工藝及鏜錐孔夾具設(shè)計(jì)
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摘要

零件的加工工藝編制，在機(jī)械加工中占有非常重要的地位，零件工藝編制得合不合理，這直接關(guān)系到零件最終能否達(dá)到質(zhì)量要求；夾具的設(shè)計(jì)也是不可缺少的一部分，它關(guān)系到能否提高其加工效率的問題。因此這兩者在機(jī)械加工行業(yè)中是至關(guān)重要的環(huán)節(jié)。
本次設(shè)計(jì)的是CQM6132主軸前軸承的加工工藝以及夾具的設(shè)計(jì)，CQM6132車床主軸前軸承是滑動(dòng)主軸，滑動(dòng)軸承的承載能力大，回轉(zhuǎn)精度高，潤(rùn)滑油膜具有抗沖擊作用，那么在加工軸承的時(shí)候就有很高的加工工藝要求，因此在編制加工工藝時(shí)，要考慮到軸承的各項(xiàng)精度以及形狀與位置公差等。
在設(shè)計(jì)加工內(nèi)錐孔的專用夾具時(shí)，為了為使加工簡(jiǎn)便且易實(shí)現(xiàn)，可采用一靠模（該靠模槽的傾斜度剛好等于工件被加工面的1：20錐度）來完成。這樣不僅能滿足加工要求，更可以一次性走刀完成加工 ，大大提高了加工效率。
關(guān)鍵詞：工藝設(shè)計(jì)、切削用量、夾具設(shè)計(jì)、定位基準(zhǔn)、定位誤差。



ABSTRCT

Is the components craft establishment, holds the very important status in the machine-finishing, the components craft establishes reasonable, whether do this direct relation components achieve the quality requirement finally; Jig's design is also an essential part, whether does it relate raises its processing efficiency the question. Therefore this both in the machine-finishing profession are the important links.
What design is the CQM6132 main axle front bearing's processing craft as well as jig's design, the CQM6132 lathe main axle front bearing is the glide main axle, sliding bearing's bearing capacity is big, the rotation precision is high, the fluid film has the anti-shock effect, then in processes bearing's time has high processing technological requirement, therefore in establishment processing craft time, must consider bearing's each precision as well as the shape and the location tolerance and so on.
When design processing internal bore conical surface three circular arc fuel tank's unit clamp, to reduce processes each section of circular arcs the processing time interval, uses a turntable and bearing's thread joint fastens the bearing, the basic plane which and the jig body's bottom surface incline the jig body and the turntable contact 1.43° (was equal to that work piece by machined surface 1:20 taper), is achieved through its coordination radial bearing's direction, when processes a fuel tank, then the processing next fuel tank, does not need to load and unload the work piece, like this reduced the bearing fuel tank's processing position error as well as raised the processing efficiency.


Key word: Craft design, cutting specifications, Jig's design ,localization datum, position error.




目 錄
中文摘要 Ⅰ
英文摘要 Ⅱ
前言 1
第1章 零件的分析 1
1.1 零件的作用 1
1.2 零件的工藝分析 1
第2章 工藝規(guī)程的設(shè)計(jì) 2
2.1 確定毛坯的制造形式 2
2.2 基準(zhǔn)的選擇 2
2.2.1 粗基準(zhǔn)的選擇 2
2.2.1 精基準(zhǔn)的選擇 2
2.3 制定工藝路線 2
2.3.1 機(jī)械加工余量、工序尺寸及毛坯的確定 3
2.3.2 確定切削用量及基本工時(shí) 5
第3章 專用夾具的設(shè)計(jì) 25
3.1 夾具的設(shè)計(jì) 25
3.1.1 定位基準(zhǔn)的選擇 25
3.1.2切削力及夾緊力的計(jì)算 25
3.1.3定位誤差的分析 26
第4章 結(jié)論 28
參考文獻(xiàn) 29
致謝 30



參考文獻(xiàn)
[1] 吳宗澤,羅圣國(guó)主編.《機(jī)械設(shè)計(jì)課程設(shè)計(jì)手冊(cè)》.第二版.北京:高等教育出版社,1999
[2] 李云、閻志、孫學(xué)強(qiáng)、賈建華.《機(jī)械制造工藝及設(shè)備設(shè)計(jì)指導(dǎo)手冊(cè)》 北京：機(jī)械工業(yè)出版社，1997
[3] 黃如林 汪群.《金屬加工工藝及工裝設(shè)計(jì)》.北京：化學(xué)工業(yè)出版社 2006
[4] 張耀.《機(jī)械加工工藝設(shè)計(jì)實(shí)用手冊(cè)》北京：航天工業(yè)出版社. 1993
[5] 肖繼德，陳寧平主編.《機(jī)床夾具設(shè)計(jì)》.北京：機(jī)械工業(yè)出版社.1991
[6] 李益民.《機(jī)械制造工藝設(shè)計(jì)簡(jiǎn)明手冊(cè).》哈爾濱：哈爾濱工業(yè)大學(xué)出版社，1994
[7] 沈?qū)W勤主編.《公差配合與技術(shù)測(cè)量.》北京：高等教育出版社