標(biāo)準(zhǔn)WORD格式排版 38頁 附裝配圖.dwg 零件圖.dwg 定位心軸.dwg 定位心軸.dwg 工藝卡.dwg 夾具體.dwg



摘 要

《機(jī)械制造工藝學(xué)》是機(jī)械專業(yè)的一門主要專業(yè)課，是以研究機(jī)械加工工藝技術(shù)和夾具設(shè)計(jì)為主技術(shù)學(xué)科，具有很強(qiáng)的實(shí)踐性，要求學(xué)習(xí)過程中應(yīng)緊密聯(lián)系生產(chǎn)實(shí)踐，同時(shí)它又具有很強(qiáng)的綜合性，

本次畢業(yè)設(shè)計(jì)的課題是CA6140車床法蘭盤加工工藝規(guī)程及某一工序?qū)Ｓ脢A具設(shè)計(jì)，主要內(nèi)容如下：

首先，對(duì)零件進(jìn)行分析，主要是零件作用的分析和工藝分析，通過零件分析可以了解零件的基本情況，而工藝分析可以知道零件的加工表面和加工要求。根據(jù)零件圖提出的加工要求，確定毛坯的制造形式和尺寸的確定。

第二步，進(jìn)行基面的選擇，確定加工過程中的粗基準(zhǔn)和精基準(zhǔn)。根據(jù)選好的基準(zhǔn)，制訂工藝路線，通常制訂兩種以上的工藝路線，通過工藝方案的比較與分析，再選擇可以使零件的幾何形狀、尺寸精度及位置精度等技術(shù)要求得到合理的保證的一種工序。

第三步，根據(jù)已經(jīng)選定的工序路線，確定每一步的切削用量及基本工時(shí)，并選擇合適的機(jī)床和刀具。對(duì)于粗加工，還要校核機(jī)床功率。

最后，設(shè)計(jì)第三道工序—鉆法蘭盤孔的夾具。先提出設(shè)計(jì)問題，再選擇定位基準(zhǔn)，然后開始切削力、夾緊力的計(jì)算和定位誤差的分析。然后把設(shè)計(jì)的過程整理為圖紙。

通過以上的概述，整個(gè)設(shè)計(jì)基本完成。

關(guān)鍵詞 機(jī)械；加工工藝；夾具設(shè)計(jì)



ABSTRACT

A specialized main specialized course that " mechanical manufacturing engineering is studied " is machinery , rely mainly on studying machining technology and jig to design technological discipline , have very strong practicality , require that should contact production practices closely in the learning process, at the same time it has comprehensive the very strong one,

The subject of this graduation project is that CA6140 lathe ring flange processing technology rules and special-purpose jig of a certain process are designed, the main content is as follows:

First of all, analyse , it is mainly analysis of the function of the part and craft analysis to the part , through part analyse can find out about basic situation of part, and craft analyse may know the processing surface of the part and is it require to process. The processing demand put forward according to the part picture, confirm the manufacture form of the blank and sureness of the size.

The second step, carry on the choice the base , confirm thick datum and precise datum in the processing course. According to the datum chosen , make the craft route , usually make the craft route of more than two kinds, with analysing through the comparison of the craft scheme, and then choosing be able to make such specification requirements as the precision of geometry form , size of the part and precision of position ,etc. get a kind of process of the rational assurance s.

The third step, according to the already selected process route, confirm for every steps of cutting consumption and basic man-hour , choose suitable lathe and cutter. To rough machining , will check the power of the lathe .

Finally , design the third process - the jig getting into the hole of the ring flange. Put forward the question of designing first , and then choose to orient the datum , then the calculation that begins to cut strength , clamp strength and analysis of the localization error. Then put the design course in order as the drawing.

Through the summary of the above, design and finish basically entirely.



Keywords: machine; Process the craft; The tongs design



目 錄

序 言 1

1 零 件 的 分 析 2

1.1零件的作用 2

1.2 零件的工藝分析 2

2 工 藝 規(guī) 程 設(shè) 計(jì) 3

2.1確定毛坯的制造形式 3

2.2基面的選擇 3

2.3制定工藝路線 3

2.4機(jī)械加工余量，工序尺寸及毛坯尺寸的確定 6

2.5確定切削用量及基本工時(shí) 8

3 夾具設(shè)計(jì) 30

3.1問題的提出 30

3.2夾具設(shè)計(jì) 30

參考文獻(xiàn) 33

致 謝 34