四缸柴油機(jī)曲軸工藝工裝設(shè)計(jì)
1.6萬字 47頁
包括任務(wù)書，設(shè)計(jì)說明書，工序卡，加工工藝過程卡，4張CAD設(shè)計(jì)圖


摘 要

在這次畢業(yè)設(shè)計(jì)中，進(jìn)行了曲軸的測(cè)繪及根據(jù)實(shí)物模型了解曲軸的外型和曲軸斜油孔的位置結(jié)構(gòu)。本設(shè)計(jì)為四缸柴油機(jī)曲軸工藝工裝設(shè)計(jì)：繪制曲軸零件圖、確定加工方法、制定加工工藝、編制加工工序卡、曲軸斜油孔加工的工裝設(shè)計(jì)。
曲軸由軸頸和軸柄構(gòu)成。
曲軸是受沖擊載荷、傳遞動(dòng)力的重要零件，在五大件中最難以保證加工質(zhì)量。由于曲軸工作條件惡劣，因此對(duì)曲軸材質(zhì)以及毛坯加工技術(shù)、精度、表面粗糙度、熱處理和表面強(qiáng)化、動(dòng)平衡等要求都十分嚴(yán)格。如果其中任何一個(gè)環(huán)節(jié)質(zhì)量沒有得到保證，則可嚴(yán)重影響曲軸的使用壽命和整機(jī)的可靠性。
曲軸材質(zhì)有球墨鑄鐵和鋼兩類。由于球墨鑄鐵的切削性能良好，可獲得較理想的結(jié)構(gòu)形狀，并且和鋼質(zhì)曲軸一樣可以進(jìn)行各種熱處理和表面強(qiáng)化處理來提高曲軸的抗疲勞強(qiáng)度、硬度和耐磨性。球墨鑄鐵曲軸成本只有調(diào)質(zhì)鋼曲軸成本的1/3左右，所以球墨鑄鐵曲軸在國內(nèi)外得到了廣泛應(yīng)用。


關(guān)鍵詞：曲軸 斜油孔 工裝設(shè)計(jì) 可靠 疲勞強(qiáng)度 球墨鑄鐵


ABSTRACT

In this graduation project, has carried on the crank mapping and the basis working model understands the crank the outlook and the tune axle tilt oil hole position structure.This design is four cylinder diesel engine crank craft work clothes design: Plan crank detail drawing, determination processing method, formulation processing craft, establishment processing travel chart, tune axle tilt oil hole processing work clothes design.
The crank constitutes by the journal and the axis handle.
The crank is in the engine withstands the impact load, the transmission power important components, guarantees the processing quality most with difficulty in the engine five big-ticket items.Because the crank working condition is bad, therefore to the crank material quality as well as the semifinished materials processing technology, the precision, the surface roughness, the heat treatment and the surface strengthens, requests and so on transient equilibrium extremely is all strict.If any link quality has not obtained the guarantee, then may affect the crank seriously the service life and the complete machine reliability.
The crank material quality has the modular cast iron and the steel two kinds.Because the modular cast iron cutting value is good, may obtain the ideal structure shape, and may carry on each kind of heat treatment and superficial strengthening processing equally with the steel crank enhances the crank the anti-fatigue strength, degree of hardness and the resistance to wear.Modular cast iron crank cost only then about quenched and tempered steel crank cost 1/3, therefore the modular cast iron crank in domestic and foreign obtained the widespread application.


Key word: Cranks Slanting oil holes Work clothes designs Reliability Fatigue strength Modular cast irons.




目 錄
中文摘要 Ⅰ
英文摘要 .............Ⅱ
第1章 設(shè)計(jì)的相關(guān)知識(shí)...........................................................................................1
1.1 畢業(yè)設(shè)計(jì)的目的、要求和內(nèi)容 1
1.1.1 畢業(yè)設(shè)計(jì)的目的 1
1.1.2 畢業(yè)設(shè)計(jì)的基本要求及主要內(nèi)容 1
1.2 畢業(yè)設(shè)計(jì)的步驟 2
1.2.1機(jī)械加工工藝規(guī)程設(shè)計(jì) 2
第二章 零件的分析 3
2.1 零件的作用及分析 3
2.2 曲軸的制造技術(shù)及工藝進(jìn)展 ....3
2.2.1 曲軸的毛坯制造技術(shù)......................................................................................................3
2.2.2 機(jī)械加工技術(shù)..................................................................................................................4
2.2.3 熱處理和表面強(qiáng)化處理技術(shù)..........................................................................................4
第三章 零件的工藝路線及加工工藝.................................................................................5
3.1擬定工藝路線應(yīng)注意的事項(xiàng)...............................................................................................5
3.2 零件的工藝路線..................................................................................................................6
3.2.1 基準(zhǔn)的選擇.......................................................................................................................6
3.2.2 曲軸工藝路線內(nèi)容...........................................................................................................6
3.2.3 零件加工工序內(nèi)容...........................................................................................................7
第四章 專用夾具設(shè)計(jì)及撰寫說明.......................................................................................35
4.1 專用夾具設(shè)計(jì)......................................................................................................................35
4.1.1 設(shè)計(jì)說明..........................................................................................................................35
4.1.2 夾具設(shè)計(jì)分析..................................................................................................................35
4.2 撰寫說明書應(yīng)注意的事項(xiàng)..................................................................................................36
第五章 結(jié) 論............................................................................................................................37
參考文獻(xiàn)........................................................................................................................38
致 謝..........................................................................................................................39


參考文獻(xiàn)

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