畢業(yè)設(shè)計(jì) 活塞工藝夾具設(shè)計(jì)
論文說明書共26頁，字?jǐn)?shù)總計(jì)：11974
資料簡(jiǎn)介：
A0-精鏜銷孔夾具零件圖-底座.dwg
A0-精鏜銷孔夾具零件圖-夾具體.dwg
A0-精鏜銷孔夾具裝配圖.dwg
A1-車銷外圓夾具裝配圖.dwg
A2-車銷外圓夾具零件圖-夾具體.dwg
A2-活塞零件圖.dwg
A2-精鏜銷孔夾具零件圖-三瓣卡爪.dwg
A2-精鏜銷孔夾具零件圖-液壓缸殼體.dwg
A3-機(jī)械加工工序卡.dwg
A3-精鏜銷孔夾具零件圖-液壓缸底座.dwg
A3-專用道具液壓頭.dwg
A4-車銷外圓夾具零件圖-定位座.dwg
A4-車銷外圓夾具零件圖-端蓋.dwg
A4-精鏜銷孔夾具零件圖-液壓活塞桿.dwg
A4-專用塞規(guī).dwg
機(jī)械加工工藝過程.dwg
論文目錄.doc
畢業(yè)論文設(shè)計(jì)說明書：活塞工藝夾具設(shè)計(jì).doc
論文文獻(xiàn).doc
摘 要

活塞是汽車發(fā)動(dòng)機(jī)中的一個(gè)主要零件，承受著交變的機(jī)械負(fù)荷和熱負(fù)荷，發(fā)動(dòng)機(jī)中工作條件最惡劣的關(guān)鍵零部件之一，隨著汽車整車對(duì)發(fā)動(dòng)機(jī)動(dòng)力性、經(jīng)濟(jì)性和可靠性的要求越來越嚴(yán)格，活塞也就更加需要具備良好的耐熱性、耐磨性、導(dǎo)向性和密封性。為滿足零件的功能，其加工質(zhì)量尤為關(guān)鍵。
基于活塞特有的機(jī)械加工工藝特點(diǎn)，單靠一般的通用機(jī)床很難滿足活塞的高精度要求，因此專用的設(shè)備及工藝裝備在活塞切削加工中使用廣泛。其功能和精度也直接影響了最終產(chǎn)品關(guān)鍵的質(zhì)量指標(biāo)。本論文主要是針對(duì)活塞加工的工藝規(guī)程及加工中所使用的典型專用夾具、刀具和量具的設(shè)計(jì)進(jìn)行詳細(xì)說明。根據(jù)活塞工作條件、結(jié)構(gòu)特點(diǎn)以及技術(shù)要求等因素，編制了兩套工藝方案，擇優(yōu)制定了活塞加工的工藝規(guī)程，并設(shè)計(jì)了兩套關(guān)鍵工序中 專用設(shè)備所使用的專用夾具以及專用的刀具和檢具各一套。

關(guān)鍵詞 活塞；工藝；夾具；刀具；檢具






















Abstract

Piston is a main section of automotive engine, which endure cross-changing mechanical load and heat load. It is also one of the key parts which have the worst working environment in the engine. Piston need to have well nature of heat-resistant, wearable, oriented and airproof along with the whole auto required more and stricter about the engine’s charter of momentum,economy and reliability. the quality of processing are so important for satisfied the parts function.
Based on the technologic characters of mechanical working which belong to piston, it is difficult to satisfy the high precision demand of piston only relaying on a general common machine tool. So the special equipment and technological outfit are extensive use in piston cutting processing.The quality of the final products is also directly influenced by function and accuracy. This paper is primary aimed at technological procedure of the piston and give a detail illustration about typical special fixture, cutter and measuring implement in processing. According to piston working condition, structural trait, technological request and some factors, people weave two technological proposals. The better proposal will selected to make technological procedure of the piston, and design a special fixture, a special cutter and a test tool respectively in processing of special equipment in two key procedures.

Key words piston; technology; fixture; cutter; test tool


目 錄

緒 論 ……………………………………………………………. 1
1 活塞的工藝分析 ……………………………………………….. .2
1.1 活塞的作用 ……………………………………………… .2
1.2 活塞的特點(diǎn) ………………………………………………. 2
1.3 活塞的主要技術(shù)條件分析 ……………………………………3
2 活塞的工藝規(guī)程的設(shè)計(jì) …………………………………………...4
2.1 活塞的材料和毛坯的制造 ……………………………………4
2.2 定位基面的選擇 ……………………………………………4
2.3 制定工藝路線 ……………………………………………...5
2.4 機(jī)械加工余量、工序尺寸和毛坯尺寸的確定 ……………………9
2.5 確定切削用量及基本工時(shí) ……………………………………10
2.6 重點(diǎn)工序的加工說明 ………………………………………..12
3 專用夾具的設(shè)計(jì) …………………………………………………14
3.1 車削外圓夾具的設(shè)計(jì) ………………………………………...15 3.1.1 工序加工要求及工藝分析 ………………………………….15 3.1.2 夾具定位方案的確定（定位基準(zhǔn)、定位元件的選擇） …………..15 3.1.3 夾具夾緊機(jī)構(gòu)的設(shè)計(jì) ……………………………………...16 3.1.4 夾具體的設(shè)計(jì) ……………………………………………17 3.2 精鏜銷孔夾具的設(shè)計(jì) ………………………………………...17 3.2.1 工序加工要求及工藝分析 ………………………………….17 3.2.2 夾具定位方案的確定（定位基準(zhǔn)、定位元件的選擇） ………….17 3.2.3 夾具的工作原理 ………………………………………….18 3.2.4 夾緊液壓系統(tǒng)設(shè)計(jì) ………………………………………..18
4 專用量具的設(shè)計(jì) …………………………………………………20
5 專用刀具的設(shè)計(jì) …………………………………………………22
5.1 滾壓加工的介紹 ……………………………………………...22
5.2 專用刀具（滾壓頭）的結(jié)構(gòu) …………………………………..22
5.3 滾壓頭的工作原理 …………………………………………..23
結(jié) 論 ……………………………………………………………..24
致 謝 ……………………………………………………………..25
參考文獻(xiàn)..